Question

Which of the following is the inverse of f(x)=-2x+3

Answer 1

f^(-1)(x) = -0.5x+1.5

Explanation:

Substitute f(x) for y, this will make it easier to solve. Then switch the x and y values, this will give you the inverse.

y=-2x+3

x=-2y+3 Next convert back to slope-intercept form.

y= -0.5x+1.5 Now you can write this in function notation.

f^(-1)(x) = -0.5x+1.5