Unit 2 Review

Which of these tables represents a proportional relationship?

Select ALL that apply.

• a

• b

• c

• d

The graph shows the relationship between the time and distance travled by a sloth. Using the graph to determine the constant of proportionality.

• k = 0
• k = 1
• k = 3
• k = 6

The graph shows the relationship between the number of packages and number of cookies. What is the constant of proportionality.

• k = 6

• k = 12

• None, the graph is not proportional.

True or False?

The constant of proportionality is also the unit rate.

• True
• False

The graph shows the relationship between the time and the miles traveled. What is the constant of proportionality for the graph?

• k = 80

• k = 20

• k = 40

• k = 160

Which best describes the relationship between x and y in this table?

•  proportional
• non-proportional

The table shows the relationship between the number of miles and the cost. Is the relationship proportional?

• Yes
• No

Which ratios are equivalent to 4:5?

Select ALL that apply.

• 8:10

• 20:25

• 5:6

• 24 to 35

There are 3 counselors for every 45 students enrolled in a camp. What is the maximum number of students allowed if there are 10 counselors?

• 15

• 135

• 150

• 300