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 2.6, Problem 32E
To determine

To evaluate the expression.

Expert Solution

Answer to Problem 32E

The expression is evaluated as:

  (ff)(4)=2

Explanation of Solution

Given information:

The expression is (ff)(4) .

Formula used:

The composition of the function is defined by,

  (fg)(x)=f(g(x))

Calculation:

Use definition of composition of the function,

  (ff)(4)=f(f(4))

Therefore, from the graph, f(4)=2 ,

  (ff)(4)=f(2)

From, the graph, f(2)=2

  (ff)(4)=2

Hence,

The expression is evaluated as:

  (ff)(4)=2

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