Angell Direct Inverse Variation

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

Is the given table a direct variation? If so, what is the constant?

• Yes; 1/4

• Yes; 4

• Yes; 2

• No

Determine the type of variation:

• Direct

• Inverse

• Neither

True or False:
An inverse variation is always a curve and a direct variation is always a line?

• True

• False

What is the constant (k) in this inverse variation?
y = 400/x

• x

• y

• 400

• Not enough information given

Tags

CCSS.HSF-LE.A.1B

The equation 
xy =  25  represents:

• direct variation

• inverse variation

• joint variation

• none of these

The width of a rectangle varies inversely with its length. if the width is 4 when the length is 18, find the width when the length is 8.

• 9

• 72

• 36

• 2

y varies directly as x, if y=12 when x=5, find y when x=3

• 36/5

• 15/12

• 12/5

• 12/15

y varies directly as x, if y=4 when x=3, find x when y=-12

• -16

• 16

• -9

• 9

Points (3,10) and (x, 15) represent a direct variation. Find x.

• 50

• 5

• 3.5

• 4.5

Tags

CCSS.HSF-LE.A.1B