Question

Which function is the inverse of f(x)=1/2x+5?

Answer 1

To find the inverse, switch the places of x and y. Then put it in terms of y. (Note: f(x) = y)
x=1/2y+5
1/2y = x-5
y = 2x - 10

Therefore, the inverse of f(x) = 2x - 10.