Question

Which equation represents an inverse variation?

y= -2x
x + y = 2
y = 30/x
y = 2x - 1

Answer 1

Answer: Choice C) y = 30/x

Inverse variation equations are of the form y = k/x. In this case, k = 30. We can rearrange the format to get x*y = k after multiplying both sides by x. So y = 30/x can be turned into x*y = 30.