Proportional relationships 3

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

A unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

1. A parking lot has 3 cars and 12 trucks. Find the ratio of cars to trucks. Select all the true ratios.

• 3 trucks : 12 cars.

• 3 cars to 12 trucks

• 3 cars to 12 trucks

What is the constant of proportionality?

• X $3

• X $4

• X $2

• X $9

The constant of proportionality can be found by finding the __________  _____________.

• unit rate
• ratio rate
• proportion answer
• rational number

Is this table Proportional?

• Yes, because the COP is different each time.

• Yes, because the COP is always X9.

• No, because the numbers are all different.

• No, because the COP changes each time.

REVIEW QUESTION
Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

What is the unit rate/constant of proportionality?

• 80 miles in 1 hours

• 20 miles in 1 hours

• 40 miles in 1 hours

• 160 miles in 1 hours

Find the constant of proportionality on this table of values.

• k=3

• k=1

• k=0

• k=4

What best describes the data on this graph?

• This graph is linear and not proportional.

• This graph is proportional.

• This graph is non-linear.