Question

If x and y vary inversely and x = -9 when y = -30, what is the constant of variation

Answer 1

Constant of variation = 270.

Explanation:

y = k/x

-30 = k / -9

k = -30 * -9

k = 270

Answer 2

270

Explanation:

x = k/y This is an inverse relationship with k = constant of proportion (or variation)

-9 = k/(-30)

k = -9 * -30 = 270