find g(x), where g(x) is the reflection across the x - axis of f(x)=x. write your answer in the form mx + b…

find g(x), where g(x) is the reflection across the x - axis of f(x)=x. write your answer in the form mx + b, where m and b are integers. g(x) =
Answer
Explanation:
Step1: Recall reflection rule
When a function $y = f(x)$ is reflected across the $x -$axis, the transformation is $y=-f(x)$.
Step2: Apply rule to given function
Given $f(x)=x$, then $g(x)=-f(x)=-x+0$.
Answer:
$-x + 0$