Chapter 2 Proportional Relationships

Determine the constant rate of change in the table.

• 10 m/s

• 4 m/s

• -2 m/s

• 40 m/s

Determine the Constant Rate of Change in the table.

• 36 yd/in.

• 3 yd/in.

• 9 yd/in.

• -1 yd/in.

Determine the Constant Rate of Change (Slope) for the graph.

• $30 per hour

• $25 per hour

• $15 per hour

• $1 per hour

Determine the Constant Rate of Change (Slope) for the graph.

• 10 cm/m

• 30 cm/m

• 50 cm/m

• 100 cm/m

Selena babysits on the weekends. The equation y=12x represents the amount of money she earns. What is the constant of proportionality?

• $5.48 babysitting money saved

• $41 spent on shopping

• $55 total babysitting

• $12 per hour babysitting

What is the solution of the proportion  $\frac{22}{11}=\frac{X}{13}$  ? Hint: Solve for X. 

• 20

• 26

• 8.2

• 23

Which size can of soup shown in the table has the lowest unit price? (Hint: Divide each to find for unit rate)

• 10 oz

• 15 oz

• 18 oz

• 32 oz

Cyclist were  $\frac{3}{4}$  finished with their ride when they reached the 18-kilometer mark. How long was their ride?

• 4 km

• 24 km

• 18 km

• 75 km

A fox can run at a speed of up to 42 miles per hour. How many feet per second is this?

(Hint: You need to convert)

• 61.6 feet per second

• 4 feet per second

• 0.6 feet per second

• 84.2 feet per second

The graph shows the amount of money Joe earns each hour he works. Determine whether the graph shows a proportional relationship. Explain your reasoning.

• No; the graph is NOT straight and passes through the origin. So, Joe's earnings are NOT proportional to the number of hours he works.

• Yes; the graph is a straight line that passes through the origin. So, Joe's earnings are proportional to the number of hours he works.

• No; the graph is straight and doesn't pass through the origin. So, Joe's earnings are NOT proportional to the number of hours he works.

• Yes; the graph is NOT a straight line that passes through the origin. So, Joe's earnings are proportional to the number of hours he works.