Question

use the graph of the function f shown to answer parts (a)-(n). (d) is f(-21) positive or negative? negative positive (e) for what value(s) of x is f(x)=0? x = -18,-3,12 (use a comma to separate answers as needed.) (f) for what values of x is f(x)>0? -18<x<-3,12<x≤18 (type a compound inequality. use a comma to separate answers as needed.) (g) what is the domain of f? the domain of f is {x| }. (type a compound inequality.)

Explanation:

Step1: Identify domain from graph

The graph of the function $f$ has $x -$ values ranging from $-21$ to $18$.

Step2: Write domain inequality

The domain includes all $x$ such that $-21\leq x\leq18$.

Answer:

$-21\leq x\leq18$