Question

Which of the following equations is an example of inverse variation between the variables x and y?

Answer 1

Answer:

C

Step-by-step explanation:

A and B are examples of direct variations because there is a nonzero constant k in each such that y=kx. A's k=1/12 while B's k=12.

D is not a direct or inverse variation because of the plus/minus constant.

C is an inverse variation because it has form y=k/x where k is nonzero. This k=12.

Answer 2

Answer:

C

Step-by-step explanation:

The equation representing inverse variation is

y = $\frac{k}{x}$ ← k is the constant of variation

The only equation that fits this description is

y = $\frac{12}{x}$ → C