question determine all intervals on which f(x) ≤ 0.
question determine all intervals on which f(x) ≤ 0.
Answer
Explanation:
Step1: Analyze the graph
Observe where the graph of (y = f(x)) is on or below the (x -)axis.
Step2: Identify intervals
From the graph, we see that (f(x)\leq0) when (x\in[-6,-4]\cup[-1,3]\cup[5,7]).
Answer:
([-6,-4]\cup[-1,3]\cup[5,7])