Evaluating an Arithmetic Combination of Functions In Exercises 19-32, evaluate the indicated function for f(x)=x²-1 and g(x) = x - 2 algebraically. If possible, use a graphing utility to verify your answer. 20. (f-g)(-2) 22. (f + g)(1) 24. (fg)(-4) 26. (f/g)(0)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Evaluating an Arithmetic Combination of Functions In
Exercises 19-32, evaluate the indicated function for
f(x)=x²-1 and g(x) = x - 2 algebraically. If possible,
use a graphing utility to verify your answer.
20. (f- g)(-2)
22. (f+g)(1)
24. (fg)(-4)
26. (f/g)(0)
Transcribed Image Text:Evaluating an Arithmetic Combination of Functions In Exercises 19-32, evaluate the indicated function for f(x)=x²-1 and g(x) = x - 2 algebraically. If possible, use a graphing utility to verify your answer. 20. (f- g)(-2) 22. (f+g)(1) 24. (fg)(-4) 26. (f/g)(0)
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