![Page 1: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/1.jpg)
3.3 – Slope
![Page 2: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/2.jpg)
Recall how to graph y = 2x – 3.
3.3 – Slope
![Page 3: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/3.jpg)
Recall how to graph y = 2x – 3.
3.3 – Slope
![Page 4: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/4.jpg)
Recall how to graph y = 2x – 3.
x
3.3 – Slope
![Page 5: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/5.jpg)
Recall how to graph y = 2x – 3.
x
-1
0
1
3.3 – Slope
![Page 6: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/6.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3
-1
0
1
3.3 – Slope
![Page 7: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/7.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3 y
-1
0
1
3.3 – Slope
![Page 8: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/8.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3 y (x, y)
-1
0
1
3.3 – Slope
![Page 9: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/9.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3 y (x, y)
-1 2(-1) – 3 -5 (-1, -5)
0 2(0) – 3 -3 (0, -3)
1 2(1) – 3 -1 (1, -1)
3.3 – Slope
![Page 10: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/10.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3 y (x, y)
-1 2(-1) – 3 -5 (-1, -5)
0 2(0) – 3 -3 (0, -3)
1 2(1) – 3 -1 (1, -1)
3.3 – Slope
![Page 11: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/11.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3 y (x, y)
-1 2(-1) – 3 -5 (-1, -5)
0 2(0) – 3 -3 (0, -3)
1 2(1) – 3 -1 (1, -1)
3.3 – Slope
![Page 12: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/12.jpg)
Recall how to graph y = 2x – 3.
x 2x – 3 y (x, y)
-1 2(-1) – 3 -5 (-1, -5)
0 2(0) – 3 -3 (0, -3)
1 2(1) – 3 -1 (1, -1)
3.3 – Slope
![Page 13: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/13.jpg)
Slope
![Page 14: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/14.jpg)
Slope = Change in y
Change in x
![Page 15: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/15.jpg)
Slope = Change in y
Change in x
m = y2 – y1
x2 – x1
![Page 16: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/16.jpg)
Slope = Change in y
Change in x
m = y2 – y1 ,
x2 – x1
for (x1,y1) and (x2,y2)
![Page 17: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/17.jpg)
Slope = Change in y
Change in x
m = y2 – y1 ,
x2 – x1
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 18: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/18.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope =
x2 – x1
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 19: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/19.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 20: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/20.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 21: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/21.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 22: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/22.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 23: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/23.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 24: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/24.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 25: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/25.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
![Page 26: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/26.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
![Page 27: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/27.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
![Page 28: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/28.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
m = y2 – y1
x2 – x1
![Page 29: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/29.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1
m = y2 – y1
x2 – x1
![Page 30: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/30.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1
m = y2 – y1
x2 – x1
![Page 31: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/31.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2
m = y2 – y1
x2 – x1
![Page 32: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/32.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
![Page 33: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/33.jpg)
Slope = Change in y Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) (3 – (-1))
![Page 34: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/34.jpg)
Slope = Change in y Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1 (3 – (-1)) 2
![Page 35: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/35.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1
(3 – (-1)) 2
![Page 36: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/36.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1
(3 – (-1)) 2
![Page 37: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/37.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1
(3 – (-1)) 2
![Page 38: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/38.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1
(3 – (-1)) 2
![Page 39: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/39.jpg)
Slope = Change in y
Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)
*See bottom p.256*
Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1
(3 – (-1)) 2
1
![Page 40: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/40.jpg)
Slope = Change in y Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)*See bottom p.256*Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1 (3 – (-1)) 2
1
![Page 41: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/41.jpg)
Slope = Change in y Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)*See bottom p.256*Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1 (3 – (-1)) 2
2
1
![Page 42: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/42.jpg)
Slope = Change in y Change in x
m = y2 – y1 , Slope = rise
x2 – x1 run
for (x1,y1) and (x2,y2)*See bottom p.256*Ex. 1 Find the slope of the lines through the following points:
a. (-1,2) and (3,4)
x1 y1 x2 y2
m = y2 – y1
x2 – x1
= (4 – 2) = 1 (3 – (-1)) 2
2
1
![Page 43: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/43.jpg)
b.
![Page 44: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/44.jpg)
b. Slope =
![Page 45: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/45.jpg)
b. Slope =
![Page 46: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/46.jpg)
b. Slope = -1
![Page 47: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/47.jpg)
b. Slope = -1
![Page 48: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/48.jpg)
b. Slope = -1
3
![Page 49: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/49.jpg)
b. Slope = -1
3
c. (1,2) and (-1,2)
![Page 50: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/50.jpg)
b. Slope = -1
3
c. (1,2) and (-1,2) x1 y1 x2 y2
![Page 51: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/51.jpg)
b. Slope = -1
3
c. (1,2) and (-1,2) x1 y1 x2 y2
m = y2 – y1
x2 – x1
![Page 52: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/52.jpg)
b. Slope = -1
3
c. (1,2) and (-1,2) x1 y1 x2 y2
m = y2 – y1 = (2 – 2)
x2 – x1 -1 – 1
![Page 53: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/53.jpg)
b. Slope = -1
3
c. (1,2) and (-1,2) x1 y1 x2 y2
m = y2 – y1 = (2 – 2) = 0
x2 – x1 -1 – 1 -2
![Page 54: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/54.jpg)
b. Slope = -1
3
c. (1,2) and (-1,2) x1 y1 x2 y2
m = y2 – y1 = (2 – 2) = 0 = 0
x2 – x1 -1 – 1 -2
![Page 55: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/55.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
![Page 56: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/56.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
![Page 57: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/57.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
![Page 58: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/58.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
![Page 59: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/59.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
m = y2 – y1
x2 – x1
![Page 60: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/60.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
m = y2 – y1
x2 – x1
![Page 61: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/61.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
m = y2 – y1 = (62,424 – 55,280)
x2 – x1 (1998 – 1990)
![Page 62: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/62.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
m = y2 – y1 = (62,424 – 55,280)
x2 – x1 (1998 – 1990)
= 7144
8
![Page 63: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/63.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
m = y2 – y1 = (62,424 – 55,280)
x2 – x1 (1998 – 1990)
= 7144
8
= 893
![Page 64: 3.3 – Slope. Recall how to graph y = 2x – 3. 3.3 – Slope](https://reader035.vdocuments.mx/reader035/viewer/2022062715/56649dab5503460f94a99a18/html5/thumbnails/64.jpg)
Ex. 2 In 1990, the average annual household income was $55,280. It then rose to $62,424 in 1998. Based on this information, at what rate did the average annual household income change per year.
***Time is always the independent (x) variable!
m = y2 – y1 = (62,424 – 55,280)
x2 – x1 (1998 – 1990)
= 7144
8
= 893
= $893/yr.