Comparing Constant of Proportionality

The graph represents how many chips Rebecca eats in an hour. The equation represents the rate Leila eats chips at.

Who will eat more chips in 3 hours?

• Rebecca will eat more chips

• Leila will eat more chips

• They will eat the same amount of chips

Erin and Lucia both have coffee shops. The graph represents how many cups of tea Erin made and the amount of sugar used. The equation represents how many cups of tea Lucia made and the amount of sugar used.

Who uses sugar at a faster rate?

• Erin uses sugar at a faster rate

• Lucia uses sugar at a faster rate

• They use sugar at the same rate

The graph displays how many chocolates Jameson eats over the course of 5 days. The equation represents the rate at which Ezra eats chocolates. Who eats more chocolates over 5 days?

• Jameson

• Ezra

• They eat the same amount of chocolate

Who sold more water bottles?

• Seth

• Hayden

• They sold the same amount of water bottles

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none

Which pizzeria makes more money?

• Pizzeria W

• Pizzeria L

• They both make the same amount

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Name the constant of proportionality.

• 20

• 40

• 16

• 35

What is the constant of proportionality?

• 7

• 14

• 10

• 21

The graph below represents how many pencils Tucker used. The equation represents the rate at which Dean uses pencils.

Who used more pencils over 5 days?

• Tucker

• Dean

• They use the same amount of pencils