y = 1 / [x + 2] multiply both sides by x + 2
y [x + 2] = 1 divide both sides by y
x + 2 = 1 / y subtract 2 from both sides
x = 1 / y − 2 swap x and y
y = 1/x − 2 for y, write f−1(x)
f−1(x) = 1/x − 2
Here's the graphs : https://www.desmos.com/calculator/thzey4cwwc
