Question

If y varies inversely as x, when x is multiplied by 2, y would be multiplied by what number?

Answer 1

Y is multiplied by `1/2`

Explanation:

`y prop 1/x implies y = k/x` where `k` is a proportionality constant.

`y_2 = k/(2x) = 1/2*k/x = 1/2y_1`