Graph Direct Variation Equations

The amount of money earned on a job is directly proportional to the number of hours worked.  If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

• $2
• $308
• $1.57
• $265

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

• 26
• 3
• 58.5
• 2

Is this a direct variation?
y=2x

• yes
• no

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

A person’s weekly pay is directly proportional to the number of hours worked. Shawn’s pay is $123.00 for 20 hours of work. Find the amount of pay for 31 hours of work. 

• $3813
• $620
• $190.65
• $4.96

Write an equation for this relationship.

• y=4x
• y=1/8x
• y=1/4x
• y=8x

Which of the given graphs is a direct variation?

• A
• B
• C
• D

Write an equation for this situation.

• y=9.75x
• y=19x
• y=19.25x
• y=9.5x

Is this proportional?

• yes
• no

Write the equation for the table given.

• y = 1/3x
• y = 3x
• y = 1/2x