What is the constant rate of change for the table above?

• 5

• 9

• 40

• 45

What is the equation of this graph?

What is the constant of proportionality in the equations y = 5x ?

• y

• 5

• x

• 10

Solve this proportion.
 $\frac{3}{5}$  =  $\frac{15}{x}$  

• 15

• 17

• 25

• 75

What is the value of x if the amounts are proportional?

• 7

• 8

• 10

• 12

Mike has finished 12 questions on his final exam. If he is  $\frac{1}{5}$  of the way through the test, how many questions are on the test?

• 2.4

• 48

• 60

• 72

• 6

• 12

John can make  $6\ \frac{1}{2}$  pizzas in  $\frac{1}{2}$  hour.  How many pizzas can he make in 2 hours?

• 12

• 13

• 25

• 26

What is the constant of proportionality in this linear function?

• 3

• 5

• 9

• 10