HA2 - U1L7 - Direct Variation

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

• 26
• 3
• 58.5
• 2

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Use direct variation to solve:

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

Use direct variation to solve:

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

Does the graph represent direct variation?

• yes

• no

Does the graph represent direct variation?

• yes

• no

Identify the direct variation equation below.

•  $y=kx$  

•  $y=mx+b$  

•  $y=\frac{k}{x}$  

•  $y=x$  

y varies directly with x, and y is 16 when x is 32.

Which equation represents this situation?

• $y=32x$

• $y=16x$

• $y=2x$

• $y=\frac{1}{2}x$

What is the correct order of the direct variation statement?

• y varies directly with x

• x varies directly with y

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

• 26
• 3
• 58.5
• 2

Tags

CCSS.HSF-LE.A.1B