Proportional Relationships Quiz

What is the constant of proportionality (unit rate) in the equation y = 3x?

• 3

• x

• y

• 0

Which of the following graphs represents a proportional relationship?

• Graph A: A straight line passing through the origin

• Graph B: A parabolic curve

• Graph C: A horizontal line

• Graph D: A vertical line

Solve the proportion: 4/6 = x/9

• x = 6

• x = 4

• x = 9

• x = 3

A car travels 300 miles in 5 hours. How far will it travel in 8 hours?

• 480 miles

• 200 miles

• 240 miles

• 360 miles

If 2 apples cost $1.50, how much would 5 apples cost?

• $2.50

• $3.75

• $4.50

• $5.50

Which of the following equations represents a proportional relationship?

• y = 2x + 3

• y = 5x - 2

• y = 3x^2

• y = 4x

A recipe calls for 2 cups of flour to make 24 cookies. How many cups of flour are needed to make 36 cookies?

• 3 cups

• 2.5 cups

• 2.25 cups

• 2.75 cups

If the ratio of boys to girls in a class is 3:5, and there are 24 boys, how many girls are there?

• 40 girls

• 36 girls

• 48 girls

• 32 girls

A machine can produce 200 widgets in 4 hours. How many widgets can it produce in 10 hours?

• 400 widgets

• 500 widgets

• 600 widgets

• 800 widgets

What is the Constant of Proportionality of the Table?

• 3
• 1/3
• 1/2
• 6