Question

**PLEASE HELP** Jake earns $7.50 per hour working at a local car wash. The function, ƒ(x) = 7.50x, relates the amount Jake earns to the number of hours he works. Write the inverse of this relation.

Answer 1

X=2y/15
2x/15 is the inverse

Answer 2

If you wish to find the inverse of y=mx you must solve for x and then switch the labels for the varibles.  (because the inverse of a function is really just switching of x and y coordinate pairs to y and x coordinates)

y=7.5x  divide both sides by 7.5

y/7.5=x  now switch variable labels...

y=x/7.5