swbat: write equations of parallel & perpendicular lines
TRANSCRIPT
HOMEWORK ANSWERS:(page 41-42)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
HOMEWORK ANSWERS:(page 41-42)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
HOMEWORK ANSWERS:(page 41-42)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
HOMEWORK ANSWERS:(page 41-42)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
Warm Up:(page 43)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
Determine the equation of the line that passes through the two points (4,2) and (0,8)
y-y1=m(x-x1)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
Step 1:
Step 2:
Plug the point into y-y1=m(x-x1) and solve for y.
m
y=3x+8
m=3 3
SAME SLOPE
(x1,y1) (4,10)
y=3x-2
y-y1=m(x-x1)
y-10=3(x-4) y-10=3x-12
SWBAT: Graph and Write Equations of Parallel & Perpendicular Lines given a Slope and Point
Step 1:
Step 2:
Plug the point into y-y1=m(x-x1) and solve for y.
m
y= ½x-7
m=½ ½
SAME SLOPE
(x1,y1) (-2,5)
y=½x+6
y-y1=m(x-x1)
y-5=½(x+2) y-5=½x+1
SWBAT: Graph and Write Equations of Parallel & Perpendicular Lines given a Slope and Point
Step 1:
Step 2: Plug the point into y-y1=m(x-x1) and solve for y.
m
y= 2x-5
m=2 -½
Negative Reciprocal
(x1,y1) (2,-1)
y=-½x
y-y1=m(x-x1)
Y+1=-½(x-2) Y+1=-½x+1
3.) Write an equation for the line that passes through (2, –1) and is perpendicular to the line described by
y = 2x – 5.
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point
Step 1:
Step 2: Plug the point into y-y1=m(x-x1) and solve for y.
m
y= -
x+2
m= -
3
Negative Reciprocal
(x1,y1) (2,6)
4.) Write an equation for the line that passes through (2, 6) and is perpendicular to the line described by
y = -
x + 2.
SWBAT: Write equations of Parallel and Perpendicular Lines
-4
3x + 6y = 6 -3x = -3x 6y = -3x + 6
6 6 6
Challenge:(page 46)
SWBAT: Write Equations of Parallel & Perpendicular Lines given a Slope and Point