Question

IF y=-5 when x=15, find y when x=-1.
PLEASE HELP ME

Answer 1

Is this a direct variation problem?

Answer 2

YES

Answer 3

The form for that is y = (1/k) x and you first have to find the variation constant k.

So, -5 = (1/k) (15)
and k = -3.

Answer 4

Using the equation y = ( -1/3) (-1), then y = 1/3 when x = -1/3.