Question

Write the inverse of the given relation.

y=x/2+5

Answer 1

Answer: f^−1(x)=2x−10

Explanation: switch the x and y to get:

x = y/2 + 5

Then isolate y by multiplying 2 on both sides and moving 10:

2x = y + 10

- 10 -10

2x -10 = y