MC2 Topic 4 Test Review

Evaluate Expressions

100

Evaluate when x = -2

x + 10

-2 + 10

8

200

Evaluate when x = 2 & y = -3

xy

2 x -3

-6

300

Evaluate when x = -8

3 + 4x

3 + 4(-8)

3 + (-32)

-29

400

Evaluate when x = -5

18 + 1.3x

18 + 1.3(-5)

18 + (-6.5)

11.50

500

Evaluate when x = -10

28 + 2.5x

28 + 2.5(-10)

28 + (-25)

3

Combine Like Terms

100

Simplify:

-3x + 10 - 5x - 3

-8x + 7

200

Simplify:

-9x + 16 - 6x - 10

-15x + 6

300

Simplify:

5.6x - 2.85 + 9.23x + 7.12

14.83x + 4.27

400

Simplify:

12c - 8c - 16b + 20 + 4

4c - 16b + 24

500

Simplify:

20x - 9y + 13 - 7x + 4

13x - 9y + 17

Distributive Property

100

Simplify:

6(2x - 3)

12x - 18

200

Simplify:

-8(2x + 10)

-16x - 80

300

Simplify:

3(x + 5) + 3(10)

3x + 15 + 30

3x + 45

400

Simplify:

2(x + 9) + 2(12)

2x + 18 + 24

2x + 42

500

Simplify:

1/2(12x + 8y - 4)

6x + 4y - 2

Add & Subtract Expressions

100

Add:

(3x - 8) + 2(x + 9)

3x - 8 + 2x + 18

5x + 10

200

Add:

(8x - 4) + 3(x + 9)

8x - 4 + 3x + 27

11x + 23

300

Subtract:

(x - 4) - (-x + 11)

x - 4 + x - 11

2x - 15

400

There are 15x - 4 customers in a story on a Monday, and 7x + 20 customers on Tuesday. What is the total number of customers for the two days?

(15x - 4) + (7x + 20)

15x - 4 + 7x + 20

22x + 16 total customers

500

During a walkathon, Team A walks a total of 8x + 15 miles and Team B walks a total of 3x - 6 miles. What is the difference in miles walked between the two teams?

(8x + 15) - (3x - 6)

8x + 15 - 3x + 6

5x + 21 miles walked

Miscellaneous

100

Simplify: 

2(x + 6) + 2(15)

2x + 12 + 30

2x + 42

200

Use the expression:  8c - 4c - 10b + 8 + 5

Evaluate if b = 2 & c = 3

8c - 4c - 10b + 8 + 5

4c - 10b + 13

4(3) - 10(2) + 13

12 - 20 + 13

5

300

A garden is 20 feet long by 5 feet wide. The expression below shows the perimeter of the garden:

(x + 20) + (x + 5) + (x + 20) + (x + 5)

Which expressions are equivalent? Select all that apply.

a) 4x + 50 

b) 2(x + 25)

c) 2(2x + 25)

d) 2(x + 5) + 2(x + 20)

e) 4x + 25

a) 4x + 50

c) 2(2x + 25)

d) 2(x + 5) + 2(x + 20)

400

Which of the following is equivalent to:

1/2(28 + 16x - 8y)

a) -14 - 8x + 4y

b) 14 + 8x - 4y

c) -14 + 8x - 4y

b) 14 + 8x - 4y

500

Kyle bought 90 tickets for rides at an amusement park. Each ride costs 3 tickets, and Kyle has been on x rides so far. Select all of the expressions that show the number of tickets Kyle has left.

a) 90 - 3x

b) -3x + 90

c) 3(x - 30)

d) 3(90 - x)

a) 90 - 3x

b) -3x + 90

d) 3(90 - x)