Solve Proportional Relationship Problems

Is the pair of ratios proportional?

• yes

• no

What is the constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Is this pair of ratios proportional?

• yes

• no

Is this pair of ratios proportional?

• yes

• no

• y = 1/5x

• y = 5x

• y = 1/2x

Write the equation of the proportional relationship using the format y = kx.

Is the graph proportional?

• Yes

• No

What is the constant of proportionality?

• k = 3

• k = 1/3

• k = 3x

• k = 1/3x