What is the inverse of the function f(x) = 2x + 1?

h(x) = one-halfx – one-half
h(x) = one-halfx + one-half
h(x) = one-halfx – 2
h(x) = one-halfx + 2
f(–2) = g(–2)
f(0) = g(–2)
f(–2) = g(0)