Skip to main content
Ch. 1 - Functions
Briggs - Calculus: Early Transcendentals 3rd Edition
Briggs3rd EditionCalculus: Early TranscendentalsISBN: 9780136847243Not the one you use?Change textbook
Chapter 1, Problem 88a

Composition of even and odd functions from tables Assume ƒ is an even function,is an odd function, and both are defined at 0. Use the (incomplete) table to evaluate the given compositions. <IMAGE>


a. ƒ(g(-1))

Verified step by step guidance
1
Identify the properties of even and odd functions: An even function satisfies \( f(x) = f(-x) \) and an odd function satisfies \( g(x) = -g(-x) \).
Since \( g \) is an odd function, calculate \( g(-1) \) using the property \( g(-1) = -g(1) \).
Look up the value of \( g(1) \) in the table to find \( g(-1) \).
Substitute the value of \( g(-1) \) into \( f(g(-1)) \).
Use the property of the even function \( f \), which is \( f(x) = f(-x) \), to evaluate \( f(g(-1)) \) using the table.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
4m
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Even Functions

An even function is defined by the property that f(x) = f(-x) for all x in its domain. This symmetry about the y-axis means that the function's values are the same for both positive and negative inputs. For example, the function f(x) = x² is even because f(2) = 4 and f(-2) = 4.
Recommended video:
6:13
Exponential Functions

Odd Functions

An odd function satisfies the condition g(x) = -g(-x) for all x in its domain. This property indicates that the function is symmetric about the origin, meaning that if you reflect the graph across both axes, it remains unchanged. A classic example is g(x) = x³, where g(2) = 8 and g(-2) = -8.
Recommended video:
06:21
Properties of Functions

Function Composition

Function composition involves combining two functions where the output of one function becomes the input of another. Denoted as (f ∘ g)(x) = f(g(x)), this operation requires understanding the individual functions' behaviors. In the context of the question, evaluating f(g(-1)) means first finding g(-1) and then applying f to that result.
Recommended video:
3:48
Evaluate Composite Functions - Special Cases