Question

Can someone explain to me how to do this problem? The "l" 's represent absolute values.
F(x)= l 2x-3 l
G(x)= -x+4
What is (f+g)(3)?

Answer 1

just sum functions and put three in it.

Answer 2

got it?

Answer 3

\(\bf f(x)=|2{\color{brown}{ x}}-3|\qquad g(x)=-{\color{brown}{ x}}+4
\\ \quad \\ \quad \\

(f+g)({\color{brown}{ 3}})\implies f({\color{brown}{ 3}})+g({\color{brown}{ 3}})\implies |2({\color{brown}{ 3}})-3|\quad +\quad -({\color{brown}{ 3}})+4\)