Function f(x) is defined as follows: f(x) = x² + 1 where x <0. If (fog)(x) = x then g(x) = ?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
Problem 43E
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QUESTION 3
Function f(x) is defined as follows:
f(x) = x²
+ 1 where x <0.
If (fog)(x) = x then g(x) = ?
O -x2 – 1
O x² – 1
1
1
None of these
Transcribed Image Text:QUESTION 3 Function f(x) is defined as follows: f(x) = x² + 1 where x <0. If (fog)(x) = x then g(x) = ? O -x2 – 1 O x² – 1 1 1 None of these
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Given,         Function fx is defined as follows :          fx=x2+1 where x0.          fgx=x

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