Suppose y varies directly with x. write a direct variation equation that relates x and y.
y=-10 when x=2
a. y=-5x
b. y= -1/5x
c. y=5x
d= y=1/5x

If y varies directly with x, then whatever is done to y is also done to x, and vice versa.

All of the answers relate to when the value of y is positive 1, meaning we have divided the original y by -10.

We must also do this to x, as they are directly proportionate, meaning x = 2 now becomes x = -1/5

Therefore the answer is [B]