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 2.7, Problem 21E

1

To determine

To find the value of f1(7)

Expert Solution

Answer to Problem 21E

Value of f1(7) is 2

Explanation of Solution

Given: f(2)=7

Calculation:

  f(2)=7

  f1(7)=2

If f is a one-to-one function, the definition says that if f takes x to y , then f1 takes y back to x

2

To determine

To find the value of f(1)

Expert Solution

Answer to Problem 21E

Value of f(1) is 3

Explanation of Solution

Given: f1(3)=1

Calculation:

  f1(3)=1

  f(1)=3

If f is a one-to-one function, the definition says that if f takes x to y , then f1 takes y back to x

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