Find the Inverse f(x)=x+3

Problem

ƒ(x)=x+3

Solution

1. Replace the function notation ƒ(x) with the variable y

y=x+3

2. Swap the variables x and y to begin solving for the inverse.

x=y+3

3. Isolate the variable y by subtracting 3 from both sides of the equation.

x−3=y

4. Rewrite the equation using inverse function notation ƒ(x)(−1)

ƒ(x)(−1)=x−3

Final Answer

ƒ(x)(−1)=x−3

Want more problems? Check here!