Question 47130
f(x) = sqrt(x + 6)
y = sqrt(x + 6)
x = sqrt(y + 6)
x^2 = y + 6
x^2 - 6 = y
red line: f(x) = sqrt(x + 6)
green line: f^-1(x) = x^2 - 6
{{{graph(600,600,-10,10,-10,10,sqrt(x+6),x^2-6,x)}}}