Question

f(x) = |x|
name the parent function.
absolute value
quadratic
linear

Explanation:

The function $f(x)=|x|$ is defined as the absolute value of $x$, which matches the labeled parent function category. Linear functions have the form $f(x)=mx+b$, and quadratic functions have the form $f(x)=ax^2+bx+c$, so neither applies here.

Answer:

absolute value