245,193 views
14 votes
14 votes
Find f-1(x) if f(x)= 2x+1

Find f-1(x) if f(x)= 2x+1-example-1
User Jmlarson
by
2.8k points

1 Answer

12 votes
12 votes

Answer:

See image.

Explanation:

Three steps!

Write y in place of f(x).

Switch the x and y.

Solve for y.

To solve square both side to get the square root off of the y expression. Then subtract 1 from both sides. Then divide by 2.

f^-1(x) = (x^2 - 1)/2

Find f-1(x) if f(x)= 2x+1-example-1
User Yang Pulse
by
2.9k points