Table of contents

3. Functions

Function Operations

3. Functions

Function Operations: Study with Video Lessons, Practice Problems & Examples

3PRACTICE PROBLEM

Given the two functions $f$ and $g$ , find $f+g$ and identify the domain.
$f\left(x\right)=11x^2-3x-7$ , $g\left(x\right)=3x-4$

ANSWERS OPTIONS

$\left(f+g\right)\left(x\right)=11x^2+11$ , Domain: $\left(-\infty,-1\right)\cup\left(-1,\infty\right)$

$\left(f+g\right)\left(x\right)=11x^2-6x+11$ , Domain: $\left(-\infty,1\right)\cup\left(1,\infty\right)$

$\left(f+g\right)\left(x\right)=11x^2-11$ , Domain: $\left(-\infty,\infty\right)$

$\left(f+g\right)\left(x\right)=11x^2+6x-11$ , Domain: $\left(-\infty,\infty\right)$