Inverse Variation & Reciprocal

In a direct variation, as x increases, y _____________ proportionally.

• decreases

• increases

In inverse variation, as x decreases, y __________ proportionally.

• increases

• decreases

Tags

CCSS.HSF-LE.A.1B

Determine k for the direct variation:

(2, 6), (3,9), (4, 12), (5, 15)

• 4

• 3

• 5

• 2

Determine the function for the inverse variation:

(3, 85), (5,51),(10,25.5),(17,15)

• y=255x

• y=255/x

• y=28/x

• y=28x

Determine k for the inverse variation:

(3, 15), (5,9),(15,3)

• 5

• 15/3

• 3/15

• 45

Determine the function for the direct variation:

(10, 5),(12,6),(14,7),(18,9)

• y=2x

• y=1/2x

• y=50x

• y=1/4x

True or False:
Direct Variation passes through the origin of a graph and inverse variation does not.

• True
• False

What kind of variation is shown in this graph?

• Inverse
• Direct

What kind of variation is shown in the graph?

• Direct
• Inverse

What is the domain for the following function?

• All real numbers except 2.

• All real number except -2.

• All real numbers except 4.

• All real numbers.