BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 2, Problem 87RE
To determine

Find the inverse of the given function f(x)=3x2

Expert Solution

Answer to Problem 87RE

The inverse of the given function f(x)=3x2 is f1(x)=x+23

Explanation of Solution

Given information: Consider the function is f(x)=3x2

Calculation:

First we write y=f(x)

  y(x)=3x2

Then we solve this equation for x

  3x2=y3x=2+yx=2+y3

Finally, we interchange x and y

Thus, inverse of the given function is f1(x)=x+23

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