Question

Find the inverse of the given function.

Answer 1

Y = $\frac{2x+42}{19}$

You can get this by switching the x and f(x) in the equation and then solve for f(x) 

f(x) = 19/2x - 21 ---> now switch them
x = 19/2f(x) - 21 ---> now add 21 to both sides
x + 21 = 19/2f(x) ---> now multiply by 2/19 on both sides
(2x + 42)/19 = f(x) ---> ANSWER