Angell Direct Inverse Variation

The image is an example of the graph of a(n)

• direct variation

• inverse variation

• neither

• both

Which of the following represents inverse variation?

• y = kx

• y = k/x

• y = x/k

• y = mx + b

What is the constant of variation and the slope?

• -3

• 0

• 3

• 2

Tags

CCSS.8.EE.B.5

Which of the following is NOT a direct variation?

• y = -2x

• y = 1/2x

• 2x + 3y = 2

• 3y = 4x

If x and y are in an inverse variation then which of the following is correct?

• x - y = constant

• x + y = constant

• xy = constant 

• x⁄y is constant 

Tags

CCSS.HSF-LE.A.1B

Y varies inversely with x, and y is 0.5 when x is 4. Which equation represents this situation?

• y=2x

• y=2/x

• y=4x

• y=x/2

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Which situation involves a direct variation?

• As the number of miles you travel increases, the amount of gas in the tank decreases.

• As the number of hours you study increases, the grade you get on your SOL increases.

• The amount of ice in a glass decreases as the temperature increases.

Is this a direct variation?

• yes

• no

What type of Variation is this?

• Direct

• Inverse