Direct Variation

In a direct variation, y=39 when x=3.  Find the value of y when x=2.

• 26

• 3

• 58.5

• 2

Trina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours? 

• $394

• $440

• $472.80

• $512.20

Is this a direct variation?

• yes

• no

if y is directly proportional to x, y is 10 when x is 3. What is the value of y when x is 5?

• 16 2/3

• 1.5

• 6

• 12

n varies directly with c. If c = 24 when n = 18, what is c when n = 22?

• 88/3

• 28

• 66/4

• 24

Y varies directly as x. If y = 12 when x = 15, what is y when x = 20?

• 4/5

• 17

• 16

• 25

Which of the given graphs is a direct variation?

• A

• B

• C

• D

y varies directly with x, and y is 16 when x is 32. Which equation represents this situation?

• y=32x

• y=16x

• y=2x

• y=(1/2)x

Is this a direct variation?

• yes

• no

Which graph shows a proportional relationship between x and y?

• A

• B

• C

• D