Ratios Rates and Tables

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Which of the following is the correct formula for finding the constant of proportionality?

• k = x/y

• k = y/x

• y = k/x

• x = k/y

The constant of proportionality is also the unit rate.

• True

• False

What is the constant of proportionality of the graph above?

• 0

• 1/6

• 60

• 10

What is the constant of proportionality of the graph above?

• 16

• 1/16

• 1

• None of the above

What is the equation?

• y=1/4x

• y=4x

• y= x + 4

• y = x - 4

An ostrich can run at a rate of 50 miles in 60 minutes. At this rate, how long would it take an ostrich to run 15 miles?

• 12 minutes

• 18 minutes

• 5 minutes

• 10 minutes

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

Luz earns $400 for 40 hours of work. Use a ratio table to determine how much she earns for 6 hours of work.

• $60.00

• $20.00

• $40.00

• $10.00

A soup that serves 16 people calls for 4 cups of chicken broth. How many cups of chicken broth would you need to make an identical recipe that serves 8 people?

*Use a ratio table to find the answer*

• 1 cup

• 4 cups

• 2 cups

• 6 cups