Chapter 6 Rational Exponents and Radical Functions - 6.4 Use Inverse Functions - 6.4 Exercises - Skill Practice - Page 443: 36

Not invertible

We use the horizontal line test to see if there is any horizontal line that can pass through the function twice. If a horizontal line does pass through twice, then the function does not have an inverse, but if the function passes the horizontal line test, its inverse is a function. Doing this, we find that the function is: $$\text{Not Invertible}$$