Question

If y varies directly as x and y = 30 and x = -10, find y when x = 56

Answer 1

-16

Explanation:

Answer 2

y =-168

Explanation:

The direct variation is given by

y = kx

Y=30 and x = -10 we can find k

30 = k(-10)

30/-10 = k(-10)/-10

-3 = k

y = -3x

We know x and we want to find y

y = -3(56)

y =-168