Question

F y is 6 when x is 3 and y varies directly with x, find y when x is 8.

Answer 1

Yes, that is correct.

I even searched it, and saw that the answer was 16.

Nice Job!! :)

Answer 2

Answer:Y = 16

Explanation:

Y=6 and x = 3

If Y varies directly as x, then

Y = kx

Substitute the value of Y and x

6 = k * 3

Make k the subject of the formula

K = 6/3

k = 2

:. The equation connecting Y and x is

Y=2x

When x = 8

Y = 2*8

Y= 16