Answer:
the 3rd answer choice is the correct one
Step-by-step explanation:
Let's actually find the inverse function:
1. Replace 'f(x)' with 'y:' y = 2x - 10
2. Interchange x and y: x = 2y - 10
3. Solve this result for y: 2y = x - 10, or y = (1/2)x - 5
Thus, the 3rd answer choice is the correct one.
