Inverse Variation

What is the equation for inverse variation?

• y = k * x

• y = k + x

• y = k^x

• y = k/x

If x and y are inversely proportional, what happens to y when x increases?

• y decreases

• y becomes zero

• y stays the same

• y increases

If y varies inversely with x, and y = 10 when x = 5, what is the value of y when x = 2?

• 15

• 5

• 25

• 20

If y varies inversely with x, and y = 6 when x = 4, what is the value of x when y = 9?

• 3

• 8/3

• 5

• 2

If y varies inversely with x, and y = 12 when x = 3, what is the value of y when x = 6?

• 24

• 9

• 18

• 6

If y varies inversely with x, and y = 8 when x = 2, what is the value of x when y = 16?

• 0.5

• 2

• 4

• 1

If y varies inversely with x, and y = 15 when x = 5, what is the value of x when y = 9?

• 10

• 8.33

• 12

• 7.5

If y varies inversely with x, and y = 20 when x = 4, what is the value of y when x = 10?

• 2

• 5

• 12

• 8

If y varies inversely with x, and y = 18 when x = 6, what is the value of x when y = 12?

• 9

• 15

• 21

• 4

If y varies inversely with x, and y = 24 when x = 2, what is the value of y when x = 8?

• 3

• 12

• 48

• 6