6.05 Module 6 Test Review (part II)

Which equation is not an example of direct variation?

Which is not an example of direct variation?

If y varies directly with x and y = 4 when x = 2, what is the constant of variation?

• -2

• 2

If y varies directly with x and y = 8 when x = -2, what is the constant of variation?

• 4

• -4

If y varies directly with x and y = 3 when x = -1, find x when y = 6.

• -2

• 2

• -18

• 18

If y varies directly with x and y = 10 when x = 2, find y when x = 5.

• 25

• -25

• 1

• -1

Is this direct variation?

• yes

• no

• cannot be determined

Which equation is not an example of an inverse variation?

Which equation is not an example of an inverse variation?

If y varies inversely with x and y = 4 when x = 2, what is the constant of variation?

• 2

• 8

• -8