Finding the Constant Proportional Relationships Recognition

Are the following ratios proportional?
8/10, 28/35

• yes

• no

Does the graph represent a proportional relationship?

• yes

• no

Are the following ratios proportional?
21/30, 56/80

• yes

• no

What is the constant of proportionality?

• X $3

• X $4

• X $2

• X $9

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.

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

The constant of proportionality is 9/1. Interpret what that means in the context of this story.

• $9 per hour

• $9 for 3 hours

• 9 hours per $1

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

• 0

• 3

• 1

• 2

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

• unit rate

• ratio rate

• proportion answer

• rational number