The correct answer for each question is indicated by a .

1

If y = 2x + 1, then the x is a(n) ________.

A)

equation

B)

constant

C)

variable

D)

expression

2

Zoltan made squares using toothpicks. The first had one toothpick on a side. The second had two toothpicks, and so on. If the number of toothpicks on a side is represented by n, what expression represents the perimeter of the square?

A)

4n

B)

n + 4

C)

n – 4

D)

4 – n

3

The relation shown is linear. What is the unkown value of y? (3.0K)

A)

6

B)

7

C)

8

D)

9

4

Consider the relation y = 2x + 3. If y = 9, what is the value of x?

A)

0

B)

1

C)

2

D)

3

5

The table of values represents the relation y = 3x + b. What is the value of b? (2.0K)

A)

–1

B)

0

C)

1

D)

2

6

A trench-digger rents for $150 plus $75 per hour. Which equation models the cost C for h hours rental?

A)

C = 150h + 75

B)

C = 75h + 150

C)

C = 75h – 150

D)

C = 150h – 75

7

Consider the relation y = –3x + 2. What happens to the value of y when the value of x increases by 1?

A)

y increases by 2.

B)

y decreases by 2.

C)

y increases by 3.

D)

y decreases by 3.

8

Ticket prices for the school musical production are shown in the graph. What is the price for one ticket? (20.0K)

A)

$5

B)

$10

C)

$20

D)

$25

9

Refer to the graph in question #8. What does the point with coordinates (3, 15) represent?

A)

The cost of a ticket is $3.

B)

The cost of a ticket is $15.

C)

3 tickets cost $15.

D)

15 tickets cost $3.

10

Consider the graphs of the relations y = –3x + 1 and y = 3x – 1. Which statement is true?

A)

Both graphs cross the y axis at the same point.

B)

The first slopes downwards from left to right, while the second slopes upwards.

C)

The first slopes upwards from left to right, while the second slopes downwards.

D)

The graphs never cross.

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