Direct Inverse Variation

Which of the following represents indirect variation?

• y = kx

• y = k/x

• y = x/k

• y = mx + b

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

• direct variation

• inverse variation

• neither

• both

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

The table represents

• direct variation

• inverse variation

• neither

• both

The table represents which type of variation?

• Direct

• Inverse

• Neither

The time required to complete a job varies inversely as the number of people working. If it took 4 hours for 7 construction workers to pave a road, how long would it have taken 3 construction workers to have done the same job?

• 5 hours

  15 minutes

• 7 hours

  30 minutes

• 9 hours

  20 minutes

• 11 hours

  10 minutes

• Direct

• Inverse

• Neither

The graph represents which type of variation?

• Direct

• Inverse

• Neither

Which graph represents a direct variation?

• A

• B

• C

• D

In the table, y varies inversely with x.

What is the missing value?