Question 46074
f(x) = 5x - 4
y = 5x - 4
x = 5y - 4
x + 4 = 5y
(1/5)x + 4/5 = f^-1(x)
{{{graph(600,600,-10,10,-10,10,5x-4,(1/5)x+4/5,x)}}}