Inverse Variation Review

What is the formula for Direct Variation?

• y=kx
• y=k/x
• z=ykx
• y=ky

What is the formula for indirect variation?

• y=kx
• y=k/x
• y=x/k
• z=kxy

Tell whether the following shows direct variation, inverse, or neither. 
y=2x

• Direct
• Inverse
• Neither

Tell whether the following shows direct variation, inverse, or neither. 
y=3/x

• Direct
• Inverse
• Neither

Where are the asymptotes in this graph. 

• x=0
• y=0
• x=0, y=0
• 0,0

Where are the asymptotes in this equation?

• x=0 y=0
• x=2 y=5
• x=-2 y=-5
• x=-2 y=5

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the domain of this graph?

• all reals
• 0
• all reals except for 0
• (0,0)

What is the range of this graph?

• all reals
• 0
• all reals except for 0
• (0,0)

Determine the type of variation:

• Direct
• Inverse
• Neither

What type of variation does this scenario represent?
You and some friends decide to buy 2 pizzas and split the cost evenly.
The number of friends who are sharing the cost of the pizzas
and the amount of money you pay for your share.

• direct variation
• inverse variation
• joint variation
• none of these