Proportional Relationships from Word Problems

What is the constant of proportionality?

• k = 3

• k = 1/3

• k = 3x

• k = 1/3x

Does the table represent a proportional relationship?

• yes

• no

Does the table represent a proportional relationship?

• yes

• no

Does the graph represent a proportional relationship?

• yes

• no

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

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

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.

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional