Question

Two distances (x and y) from a point are related by the expression 3x = 9y + 8. Distance x is increasing at a rate of 18 m/s. Find the rate at which y is changing.

Answer 1

isolate y; get it by itself.

subtract 8 from both sides:

9y = 3x - 8

divide both sides by 9

y = (3x - 8)/9

Answer 2

is that it?

Answer 3

not 100% sure. they usually tell you find the rate at which y is changing at a given point (x, y)

do you have access to the solution?

Answer 4

No I don't that's why I had to post it here :/