Precalculus - A Custom Text for UNLV

6th Edition

ISBN: 9781133150572

Author: Redlin Watson Stewart

Publisher: Compliation @ Cengage Learning

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Question

Chapter 2.1, Problem 21E

To determine

To evaluate g(x)=1−x1+x at a number, we substitute the number for x in the definition of f(x) .

Expert Solution & Answer

Answer to Problem 21E

The values of the given functionare:

g(2)=−13,g(−2)=−3,g(12)=13,g(a)=1−a1+a,g(a−1)=2−aa,g(−1)=20(undefined)

Explanation of Solution

Given information: consider the function g(x)=1−x1+x

Calculation:

Evaluate the values of the function g(x)=1−x1+x for the given values of the variable x

Plug the value x=2, in the function g(x)=1−x1+x then we get the value of g(2).

g(2)=1−21+2g(2)=−13

Plug the value x=−2, in the function g(x)=1−x1+x then we get the value of g(−2).

g(−2)=1−(−2)1+(−2)g(−2)=1+21−2g(−2)=3−1

Plug the value x=12, in the function g(x)=1−x1+x then we get the value of g(12).

g(12)=1−(12)1+(12)g(12)=1232g(12)=13

Plug the value x=a in the function g(x)=1−x1+x then we get the value of g(a).

g(a)=1−a1+a

Plug the value x=a−1, in the function g(x)=1−x1+x then we get the value of g(a−1).

g(a−1)=1−(a−1)1+a−1g(a−1)=1−a+11+a−1g(a−1)=2−aa

Plug the value x=−1, in the function g(x)=1−x1+x then we get the value of g(−1).

g(−1)=1−(−1)1+(−1)g(−1)=1+11−1g(−1)=20

Thus, the values of the given functionare:

g(2)=−13,g(−2)=−3,g(12)=13,g(a)=1−a1+a,g(a−1)=2−aa,g(−1)=20(undefined)

Chapter 2.1, Problem 20E

Chapter 2.1, Problem 22E

Chapter 2 Solutions

Precalculus - A Custom Text for UNLV

Ch. 2.1 - Prob. 1E Ch. 2.1 - For a function f, the set of all possible inputs...Ch. 2.1 - (a) Which of the following functions have 5 in...Ch. 2.1 - A function is given algebraically by the formula...Ch. 2.1 - Prob. 5E Ch. 2.1 - Prob. 6E Ch. 2.1 - Prob. 7E Ch. 2.1 - Prob. 8E Ch. 2.1 - Prob. 9E Ch. 2.1 - Prob. 10E

Ch. 2.1 - Prob. 11E Ch. 2.1 - Prob. 12E Ch. 2.1 - Prob. 13E Ch. 2.1 - Prob. 14E Ch. 2.1 - Prob. 15E Ch. 2.1 - Prob. 16E Ch. 2.1 - Prob. 17E Ch. 2.1 - Prob. 18E Ch. 2.1 - Prob. 19E Ch. 2.1 - Prob. 20E Ch. 2.1 - Prob. 21E Ch. 2.1 - Prob. 22E Ch. 2.1 - Prob. 23E Ch. 2.1 - Prob. 24E Ch. 2.1 - Prob. 25E Ch. 2.1 - Prob. 26E Ch. 2.1 - Prob. 27E Ch. 2.1 - Prob. 28E Ch. 2.1 - Prob. 29E Ch. 2.1 - Prob. 30E Ch. 2.1 - Prob. 31E Ch. 2.1 - Prob. 32E Ch. 2.1 - Prob. 33E Ch. 2.1 - Prob. 34E Ch. 2.1 - Prob. 35E Ch. 2.1 - Prob. 36E Ch. 2.1 - Prob. 37E Ch. 2.1 - Prob. 38E Ch. 2.1 - Prob. 39E Ch. 2.1 - Prob. 40E Ch. 2.1 - Prob. 41E Ch. 2.1 - Prob. 42E Ch. 2.1 - Prob. 43E Ch. 2.1 - Prob. 44E Ch. 2.1 - Prob. 45E Ch. 2.1 - Prob. 46E Ch. 2.1 - Prob. 47E Ch. 2.1 - Prob. 48E Ch. 2.1 - Prob. 49E Ch. 2.1 - Prob. 50E Ch. 2.1 - Prob. 51E Ch. 2.1 - Prob. 52E Ch. 2.1 - Prob. 53E Ch. 2.1 - Prob. 54E Ch. 2.1 - Prob. 55E Ch. 2.1 - Prob. 56E Ch. 2.1 - Prob. 57E Ch. 2.1 - Prob. 58E Ch. 2.1 - Prob. 59E Ch. 2.1 - Prob. 60E Ch. 2.1 - Prob. 61E Ch. 2.1 - Prob. 62E Ch. 2.1 - Prob. 63E Ch. 2.1 - Prob. 64E Ch. 2.1 - Prob. 65E Ch. 2.1 - Prob. 66E Ch. 2.1 - Prob. 67E Ch. 2.1 - Prob. 68E Ch. 2.1 - Prob. 69E Ch. 2.1 - Prob. 70E Ch. 2.1 - Prob. 71E Ch. 2.1 - Prob. 72E Ch. 2.1 - Prob. 73E Ch. 2.1 - Prob. 74E Ch. 2.1 - Relativity According to the Theory of Relativity,...Ch. 2.1 - Income Tax In a certain country, income tax T is...Ch. 2.1 - Internet Purchases An Internet bookstore charges...Ch. 2.1 - Cost of a Hotel Stay A hotel chain charges 75 each...Ch. 2.1 - Speeding Tickets In a certain state the maximum...Ch. 2.1 - Height of Grass A home owner mows the lawn every...Ch. 2.1 - Prob. 81E Ch. 2.1 - Prob. 82E Ch. 2.1 - Prob. 83E Ch. 2.1 - Prob. 84E Ch. 2.1 - Prob. 85E Ch. 2.2 - Prob. 1E Ch. 2.2 - Prob. 2E Ch. 2.2 - Prob. 3E Ch. 2.2 - Match the function with its graph. 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So if g(2) = 5...Ch. 2.6 - If the rule of the function f is add one and the...Ch. 2.6 - We can express the functions in Exercise 3...Ch. 2.6 - Prob. 5E Ch. 2.6 - Prob. 6E Ch. 2.6 - Prob. 7E Ch. 2.6 - Prob. 8E Ch. 2.6 - Prob. 9E Ch. 2.6 - Prob. 10E Ch. 2.6 - Prob. 11E Ch. 2.6 - Prob. 12E Ch. 2.6 - Prob. 13E Ch. 2.6 - Prob. 14E Ch. 2.6 - Prob. 15E Ch. 2.6 - Prob. 16E Ch. 2.6 - Prob. 17E Ch. 2.6 - Prob. 18E Ch. 2.6 - Prob. 19E Ch. 2.6 - Prob. 20E Ch. 2.6 - Prob. 21E Ch. 2.6 - Prob. 22E Ch. 2.6 - Prob. 23E Ch. 2.6 - Prob. 24E Ch. 2.6 - Prob. 25E Ch. 2.6 - Prob. 26E Ch. 2.6 - Prob. 27E Ch. 2.6 - Prob. 28E Ch. 2.6 - Prob. 29E Ch. 2.6 - Prob. 30E Ch. 2.6 - Prob. 31E Ch. 2.6 - Prob. 32E Ch. 2.6 - Prob. 33E Ch. 2.6 - Prob. 34E Ch. 2.6 - Prob. 35E Ch. 2.6 - Prob. 36E Ch. 2.6 - Prob. 37E Ch. 2.6 - Prob. 38E Ch. 2.6 - Prob. 39E Ch. 2.6 - Prob. 40E Ch. 2.6 - Prob. 41E Ch. 2.6 - Prob. 42E Ch. 2.6 - Prob. 43E Ch. 2.6 - Prob. 44E Ch. 2.6 - Prob. 45E Ch. 2.6 - Prob. 46E Ch. 2.6 - Prob. 47E Ch. 2.6 - Prob. 48E Ch. 2.6 - Prob. 49E Ch. 2.6 - Prob. 50E Ch. 2.6 - Prob. 51E Ch. 2.6 - Prob. 52E Ch. 2.6 - Prob. 53E Ch. 2.6 - Prob. 54E Ch. 2.6 - Prob. 55E Ch. 2.6 - Prob. 56E Ch. 2.6 - Prob. 57E Ch. 2.6 - Prob. 58E Ch. 2.6 - Prob. 59E Ch. 2.6 - Revenue, Cost, and Profit A print shop makes...Ch. 2.6 - Area of a Ripple A stone is dropped in a lake,...Ch. 2.6 - Inflating a Balloon A spherical balloon is being...Ch. 2.6 - Area of a Balloon A spherical weather balloon is...Ch. 2.6 - Multiple Discounts You have a 50 coupon from the...Ch. 2.6 - Multiple Discounts An appliance dealer advertises...Ch. 2.6 - Airplane Trajectory An airplane is flying at a...Ch. 2.6 - Prob. 67E Ch. 2.6 - Prob. 68E Ch. 2.6 - Prob. 69E Ch. 2.6 - Prob. 70E Ch. 2.7 - A function f is one-to-one if different inputs...Ch. 2.7 - (a) For a function to have an inverse, it must be...Ch. 2.7 - A function f has the following verbal description:...Ch. 2.7 - True or false? 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To evaluate g ( x ) = 1 − x 1 + x at a number, we substitute the number for x in the definition of f ( x ) .