Direct and Inverse Variation

y varies inversely as x. If y=8 when x=15, what is the value of x when y=30?

• 4

• 16

• 56.25

• 40

Which of the following makes a direct variation?

• (1,4) (2,5) (3,6)

• (0,1) (9,3) (3,9)

• (2,6) (5,15) (10,30)

• (2,12) (3,8) (4,6)

This chart shows how the cost to rent a vacation home varies with the number pf people in a group. Which statement is true about this relationship?

Write the equation (direct or inverse variation) to model the data in the table.

Determine whether the following table is Direct Variation or Inverse Variation.

• Inverse Variation

• Direct Variation

• Neither

• Both

The height a ball bounces varies directly with the height from which it is dropped. A certain ball bounces 25 cm when dropped from a height of 75 cm. How high will the ball bounce if dropped from a height of 100 cm?

• 30

• 300

• 18.75

• 33.33333