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Let f(x) and g(x) be defined by f(x)=4-x; 5+x x<0 g(x) = x²+2 x≥0 (a) Evaluate (f+9)(-2), (f-9)(-1), (fg)(1) and (f/g)(2). (b) Find all x for which f(x) = g(x). You must give the exact answer and show all working.

Let f(x) and g(x) be defined by f(x)=4-x; 5+x x<0 g(x) = x²+2 x≥0 (a) Evaluate (f+9)(-2), (f-9)(-1), (fg)(1) and (f/g)(2). (b) Find all x for which f(x) = g(x). You must give the exact answer and show all working.

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter8: Introduction To Functions
Section8.8: Linear And Quadratic Functions
Problem 4ST
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Let f(x) and g(x) be defined by f(x)=4-x; 5+x x<0 g(x) = x²+2 x≥0 (a) Evaluate (f+9)(-2), (f-9)(-1), (fg)(1) and (f/g)(2). (b) Find all x for which f(x) = g(x). You must give the exact answer and show all working.
Transcribed Image Text:Let f(x) and g(x) be defined by f(x)=4-x; 5+x x<0 g(x) = x²+2 x≥0 (a) Evaluate (f+9)(-2), (f-9)(-1), (fg)(1) and (f/g)(2). (b) Find all x for which f(x) = g(x). You must give the exact answer and show all working.
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