24.1k views
3 votes
Find the inverse function of g(x) = 2x + 4.

g -1(x) = 4x + 2
g -1(x) = 2x + 1/2
g -1(x) = 1/2 x - 2
g -1(x) = 2x - 4

User David Pfau
by
8.2k points

1 Answer

2 votes

Answer:


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

Explanation:

First, let's rename this as y = 2x + 4.

In order to find the inverse, switch the x and the y, then solve for the new y.

x = 2y + 4 so

2y = x - 4 and


y=(1)/(2)x-2

Putting it back into function notation:


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

User Mrtechtroid
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories