The table below shows c, the cost to park in a parking garage for h hours.

h

1

2

3

4

5

c

$1.50

$3.00

$4.50

$6.00

$7.50

Which of the following equations best fits the data shown in this table?

A. c = h + 0.5
Incorrect. This equation only satisfies the first data pair in the chart.

B. c = 1.5h
Correct! This equation satisfies all the data pairs in the table.

C. c = 2h + 1
Incorrect. This equation only satisfies the second data pair in the chart.

D. c = 0.5h + 1
Incorrect. This equation only satisfies the first data pair in the chart.

The following graph shows a line drawn on a coordinate grid.

Which of the following statements best describes the relationship between x and y as seen in the graph?

A. The value of y is 3 times the value of x.
Incorrect. This statement only describes the point (1, 3) on the graph.

B. The value of y is 2 more than the value of x.
Incorrect. This statement only describes the point (1, 3) on the graph.

C. The value of y is 1 more than the value of x.
Incorrect. This statement only describes the point (0, 1) on the graph.

D. The value of y is 1 more than twice the value of x.
Correct! This statement describes all the points on the graph.

A car repair shop charges an initial fee of $45.00 plus $30.00 per hour on all repairs. Which of the following data tables best represents the relationship between c, the cost of a repair and h, the number of hours the repair lasted?

A B C D

h

c

1

$75.00

2

$105.00

3

$135.00

4

$165.00

h

c

1

$45.00

2

$75.00

3

$105.00

4

$135.00

h

c

1

$75.00

2

$120.00

3

$165.00

4

$210.00

h

c

1

$30.00

2

$75.00

3

$120.00

4

$165.00

A
Correct! The data in this table correctly match the information given in the problem.

B
Incorrect. The data in this table represent a charge of $45.00 for the first hour and then $30.00 for each additional hour.

C
Incorrect. The data in this table represent an initial fee of $30.00 plus $45.00 per hour.

D
Incorrect. The data in this table represent a charge of $30.00 for the first hour and then $45.00 for each additional hour.

Martel is selling pies for $5.00 each to raise money for a local charity. Each pie costs him $1.25 for ingredients, for which Martel is not reimbursed. Which of the following equations can be used to find y, the amount in dollars that Martel will raise by selling x pies?

A. y = 5x – 1.25
Incorrect. The cost for ingredients is for each pie.

B. y = 5x
Incorrect. You forgot to subtract the cost of the ingredients for each pie.

C. y = 3.75x
Correct! This equation will calculate the amount that Matt will raise.

D. y = 6.25x
Incorrect. You need to subtract the cost of the ingredients for each pie.

The graph of the line y = ½x + 1 is drawn on the coordinate grid below.

Which table of values contains only points on this line?

A B C D

x

y

-2

0

0

2

4

3

6

8

x

y

-4

-1

0

1

4

3

6

4

x

y

0

-2

1

0

3

4

4

6

x

y

-6

2

-4

1

-2

0

0

-1

A
Incorrect. This table contains points that are not on the line.

B
Correct! All of the points in this table are on the line.

C
Incorrect. This table has switched the x and y values of points that are on the line.

D
Incorrect. All of the y values in this table have the wrong sign.