Proportional Relationships Quiz

What is the constant of proportionality in the equation y = 3x?

• 1

• 2

• 3

• 4

Which of the following equations represents a proportional relationship?

• y = 2x + 3

• y = 5x - 1

• y = 3x^2

• y = 4x

If y is directly proportional to x, and y = 10 when x = 5, what is the value of y when x = 8?

• 4

• 6

• 8

• 16

Which of the following graphs represents a proportional relationship?

• Graph A

• Graph B

• Graph C

• Graph D

If y is inversely proportional to x, and y = 6 when x = 2, what is the value of y when x = 4?

• 3

• 6

• 9

• 12

Which of the following equations represents a proportional relationship?

• y = 2x + 1

• y = 3x - 2

• y = 4x + 5

• y = 5x - 3

If y is directly proportional to x, and y = 15 when x = 3, what is the value of y when x = 6?

• 5

• 10

• 15

• 20

Which of the following graphs represents a proportional relationship?

• Graph A

• Graph B

• Graph C

• Graph D

If y is inversely proportional to x, and y = 8 when x = 4, what is the value of y when x = 2?

• 4

• 6

• 8

• 12

What is the constant of proportionality in the equation y = 2x + 1?

• 1

• 2

• 3

• 4