Algebra I and Concepts

Ch. 2 Test Review

Directions

1) Get out a piece of paper, put your name and “Ch. 2 Test Review” at the top

2) As each slide appears, work through the problems shown. You may not finish them all, that is ok! Don’t rush, work through what you can.

3) When the answer slide is posted, check your answers, find and correct mistakes. Ask questions if necessary.

4) Finish any questions by looking up the review on my website

5) This will be turn in on MONDAY with your homework

Section 2-1

Translate the verbal phrases into equations1) Three times r is less than 15 equals 6.

2) The sum of q and four times t is equal to 29.

3) A number n squared plus 12 is the same as the quotient of p and four.

Section 2-1

Translate the verbal phrases into equations1) Three times r is less than 15 equals 6. 15 – 3r = 62) The sum of q and four times t is equal to 29. q + 4t = 293) A number n squared plus 12 is the same as the quotient of p and four.

Section 2-1

Change the equations into verbal phrases.1) 7x – y = 23

2) 3(g + 8) = 4h – 10

3) J + 16 = 35

Section 2-1

Change the equations into verbal phrases.1) 7x – y = 23 The difference of 7 times a

number x and a number y is 232) 3(g + 8) = 4h – 10 3 times the sum of a

number g and 8 equals the difference of a number h times four and 10

3) J + 16 = 35 The sum of a number j and 16 is the same as 35

Section 2-2: Solve the following one-step equations

1) 18 + x = 40

2) 44 = t – 72

3) -4a = 48

4)

5)

6)

Section 2-2: Solve the following one-step equations

1) 18 + x = 40 x = 22

2) 44 = t – 72 t = 116

3) -4a = 48 a = -12

4) x = -54

5) r = 25

6) c = 18

Section 2-3: Solve the multi-step equations

1) 2x – 4 = 8

2) *

3)

4) 5(g + 8) – 7 = 103

Section 2-3: Solve the multi-step equations

1) 2x – 4 = 8 x = 6

2) r = 17

3) n = 62

4) 5(g + 8) – 7 = 103 g = 14

Section 2-4: Solve the equations with a variable on each side

1) 9x – 4 = 2x + 3

2) 6.78j – 5.2 = 4.33j + 2.15

3) 3(3m – 2) = 2(3m + 3)

4) 6(3a + 1) – 30 = 3(2a – 4)

Section 2-4: Solve the equations with a variable on each side

1) 9x – 4 = 2x + 3 x = 1

2) 6.78j – 5.2 = 4.33j + 2.15J = 3

3) 3(3m – 2) = 2(3m + 3)m = 4

4) 6(3a + 1) – 30 = 3(2a – 4)a = 1

2-4: Solve the equations with special solutions

1) -5(3 – q) + 4 = 5q – 11 2) 7 – 3r = r – 4(2 + r)

2-4: Solve the equations with special solutions

1) -5(3 – q) + 4 = 5q – 11

All real number solutions

2) 7 – 3r = r – 4(2 + r) No Solutions

Section 2-5: Solve the absolute value equations and graph the solution set

1) 2)

Section 2-5: Solve the absolute value equations and graph the solution set

1)

x = 4 and -2

2)

t = 6 and -2

Section 2-6: Solve the following proportions

1) 2)

3) Use cross products to determine whether the following is a proportion (yes or no)

Section 2-6: Solve the following proportions

1) 2)x = 9.8

x = -4.14

3) Use cross products to determine whether the following is a proportion (yes or no)No. 4,732 does not = 5, 082

Extra: Word Problems

Mrs. Huseman’s cell phone plan charges a monthly fee of $75 plus 5 cents per minute she talks on the phone. Ms. Howard’s cell phone plan charges a monthly fee of $55 plus 7 cents per minute. Set up an equation and solve to find how many minutes the two plans are equal.

Extra: Word Problems

Mrs. Huseman’s cell phone plan charges a monthly fee of $75 plus 5 cents per minute she talks on the phone. Ms. Howard’s cell phone plan charges a monthly fee of $55 plus 7 cents per minute. Set up an equation and solve to find how many minutes the two plans are equal..05x + 75 = .07x + 55x = 1,000

Extra: Word Problems

Chris saved twice the number of quarters that Nora saved plus 6. The number of quarters Chris saved is also 5 times the difference of the number of quarters and 3 that Nora saved. Write and solve an equation to find the number of quarters Chris and Nora saved.

Extra: Word Problems

Chris saved twice the number of quarters that Nora saved plus 6. The number of quarters Chris saved is also 5 times the difference of the number of quarters and 3 that Nora saved. Write and solve an equation to find the number of quarters Chris and Nora saved.2x + 6 = 5(x – 3)x = 7, which means Nora saved 7 and Chris saved 20