Answer:
Step-by-step explanation
For the time, call f(x) = y
Interchange x and y
y = 2x - 12
x = 2y - 12
Add 12 to both sides
x + 12 = 2y
Divide both sides by 2
x/2 + 12/2 = y
x/2 + 6 = y
x/2 + 6 = h(x)
Nothing I'm getting looks like what you've given us. Perhaps this is a different question?
