You can put this solution on YOUR website! f(x) = y = 5 + (1/7)x
To find the inverse, swap the y and the x and solve for y:
x = 5 + (1/7)y
x - 5 = (1/7)y
y = 7x - 35
You can graph these and check they are inverses because they are mirror images across the line y = x.
