Direct & Inverse Variation

Direct & Inverse Variation

Multiple Choice

Which of the following represents inverse variation?

• y = kx

• y = k/x

• y = x/k

• y = mx + b

Multiple Choice

Which of the following represents direct variation?

• y = kx
• y = k/x
• y = x/k
• y = mx + b

Open Ended

What questions do you have?

Multiple Choice

Which equation represents an inverse variation?

• y = 40/x
• y = 40x
• y/x = 40
• x = y/40

Multiple Choice

y varies inversely as x, if y = -3 when x = -6, find y when x = 14.

• 11
• -11
• 9/7
• 7/9

Multiple Choice

 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

Open Ended

What questions do you have?

Multiple Choice

 Y varies directly with x, and y is 84 when x is 16. Which equation represents this situation?

• y=1344x
• y=100x
• y=5.25x
• y=4/21x