Question

If y varies directly as x and y = −24 when x = 8, then find y when x = 10.

Answer 1

When you remove the proportionality sign their will be a constant.Let's say k.

Answer 2

I got -30 as my final answer. Is that correct?

Answer 3

Can you explain me how?

Answer 4

ughhhh... okay.
y=kx
-24/8=8k/8
k=-3
y=-3x
y=-3(10)
y=-30

Answer 5

Right

Answer 6

Thanks!!!!

Answer 7

No worries c: