Question

Suppose y varies directly as x. Write a direct variation that relates x and y. Then solve.

1. If y=6 when x=10, find x when y=18

2. If y=4 and 1/4 when x=3/4, find y when x=4 and 1/2

Answer 1

y = k*x,

1.
6 = k*10
6/10 = k