How do you know if an equation represents a proportional relationship?

• If it is a straight line

• If all the ratios are equivalent

• If the line includes the origin

• All of these answers are correct

There are 120 calories in a 3/4 cup serving of cereal. How many calories are in 6 cups of cereal?

• 960

• 90

• 540

• 160

Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork. Who earns more per hour? How much more?

• Danielle; $ 0.80 more per hour

• MacKenzie; $ 0.80 more per hour

• Danielle; $ 1.20 more per hour

• They make the same per hour

A line on a graph goes through the point (0,5). Is this line proportional? Why?

• Yes, because it goes through the origin

• No, because it doesn't go through the origin

• Yes, because the y value can be divided by the x value

• There are not enough coordinates to determine

At the nearest wholesale store, 3 bags of cereal cost $21.75. At this rate, how much would 5 bags of cereal cost?

• $36.25

• $7.25

• $65.25

• $4.35

When can you use proportional reasoning to solve a problem?

• When the sum of two quantities is 1

• When one quantity is a constant multiple of the other

• When the product of two quantities is a constant

• When one quantity is 1 more than the other

Yosef typed a 36 word paragraph in 2/3 minute. What is his typing speed, in words per minute?

• 54 words per minute

• 24 words per minute

• 48 words per minute

• 54 words per second

What is the best way to find someone's heart rate?

• Feel their pulse for 10 seconds and multiply the result by 6

• Feel their pulse for 3 minutes and divide the result by 3

• Feel their pulse for 15 seconds and multiply the result by 5

• Feel their pulse for 5 seconds and multiply the result by 10

Which one has a constant of proportionality of 4?

• y = 4x

• y = 4x + 3

• y = 2x + 4

• x + 4y

The equation y = 1/3x is proportional. What value of x would make the y value equal to 4?

• 12

• 1 1/3

• 4/3

• 4/12