Question

What is the inverse of the function f(x) = 2x – 10?

Answer 1

The fourth option is correct. 1. Switch f(x) for y    2. Transfer -10 as a +10 to the left side of the equation. y + 10 = 2x.  3. Then last, divide both sides by 2 to leave the x alone of the right. Now you have x = 1/2y + 5. Now switch back the y and x so it becomes y = 1/2x + 5. Also, make the y an h(x) to finish up.