Ch 2 Mid Chapter Quiz Review

How do you know if an equation represents a proportional relationship? It can be written in the form ____.

• y = k + x

• y = kx

• y = k - x

• y = k/x

Lee rides his bicycle 2/5 mile in 1/5 hour, along the bike trail. Assuming he rides at a constant rate, what is his speed, in miles per hour (mph)?

• 1 mph

• 2 mph

• 3 mph

• 4 mph

There are 80 Calories in a 1/4-cup serving of cereal. How many Calories are there in 2 cups of cereal?

• 540 Calories

• 580 Calories

• 600 Calories

• 640 Calories

Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

What is the constant of proportionality?

• $3
• $4
• $2
• $9

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Is this table proportional?

• Yes
• No

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Which best describes the relationship represented in this table?

• proportional
• non-proportional

Tags

CCSS.7.RP.A.2A

At the local dairy farm, Kareem buys a 12-oz container of yogurt for $1.32. Jonah buys a 6-oz container of yogurt for $0.66.

Are the cost, y, in dollars and the amount of yogurt, x, proportional? Explain. Write an equation to represent this relationship.

• No, they are not proportional

• Yes, y = 0.11x

• Yes, y = 9.1x

• No, y = kx + 0.11

Danielle earns $40.80 for 4 hours of yardwork. MacKenzie earns $56.40 for 6 hours of yardwork. How much do they each earn per hour?

• Danielle earns $9.40 and Mackenzie earns $10.20

• Danielle earns $10.20 and Mackenzie earns $9.40

• Danielle earns $9.20 and Mackenzie earns $10.40

• Danielle earns $10.40 and Mackenzie earns $9.20

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2