Question

Suppose y varies directly with x. Write a direct equation that relates x and y when y = 125 and x = -5. Then find y when x = 12.

Answer 1

The answer for y is -300.

Explanation:

It's -300 because when you divide 125 by -25 you get -5 for the first y and x. So for the next one you just get 12 times -25 to get -300 and that's how you get your y.