8th Grade Skills (Lin. Int.)

Stacey earns $15 each week plus $.50 for each customer on her paper route. She wants to earn at least $25 each week. What equation can she use to find x, the number of customers she needs to make exactly $25?

• 0.50x + 15 = 25

• 50x + 15 = 25

• x + 15 = 25

• 2x + 15 = 25

What value of x makes this equation true? 4x – 10 = 18

• 7

• 8

• 2

• 4

Which equation below could represent the data in the table? Table of Values x y -2 -1 -1 1 0 3 1 5 2 7

• y = 3x + 1

• y = 2x + 3

• y = x + 4

• y = x + 2

Which equation best represents the line shown on the graph?

• x = –5

• x = 5

• y = 5

• y = –5

Which graph best represents the equation y = –2x – 2?

• Graph C

• Graph B

• Graph D

• Graph A

The graph below represents the equation y = 2/1x + 1. Which graph best represents the equation created when the slope of y = 2/1x + 1 is changed to 4?

• Graph C

• Graph B

• Graph D

• Graph A

The graph of the equation y = 6x is shown.

• Graph A

• Graph D

• Graph C

• Graph B

What are the solutions to the following inequality? 4x ≥ 68

• x > 64

• x ≥ 64

• x ≥ 17

• x > 17

What are the solutions to the following inequality? 2x + 6 < 4

• x > –1

• x < 1

• x < –1

• x > 1

Melissa has $20 to buy bagels and juice for her class. box of bagels $6.13, including tax bottle of juice $2.08, including tax She will buy one box of bagels. With the rest of the money, Melissa will buy as many bottles of juice as possible. Which inequality can she use to find b, the maximum number of bottles of juice she can buy?

• 6.13 + 2.08b ≥ 20.00

• 6.13b + 2.08 ≤ 20.00

• 6.13b + 2.08 ≥ 20.00

• 6.13 + 2.08b ≤ 20.00