using the following graph find (approximate when needed)\n(a) the intervals where the function is…

using the following graph find (approximate when needed)\n(a) the intervals where the function is increasing. write the solution in interval notation.\n(b) the intervals where the function is decreasing. write the solution in interval notation.\n(c) the relative minimum.\n(d) the relative maximum.\n(e) the domain and range.
Answer
Explanation:
Step1: Identify increasing intervals
Observe where graph rises. The function is increasing on $(-3,-1)$ and $(1,\infty)$.
Step2: Identify decreasing intervals
Observe where graph falls. The function is decreasing on $(-\infty, - 3)$ and $(-1,1)$.
Step3: Find relative minimum
Locate lowest - point in local regions. The relative minimum is at the point $(1,-3)$.
Step4: Find relative maximum
Locate highest - point in local regions. The relative maximum is at the point $(-1,3)$.
Step5: Find domain and range
Domain is set of all $x$ - values, range is set of all $y$ - values. The domain is $(-\infty,\infty)$ and the range is $[-3,\infty)$.
Answer:
(a) $(-3,-1)\cup(1,\infty)$ (b) $(-\infty,-3)\cup(-1,1)$ (c) $(1,-3)$ (d) $(-1,3)$ (e) Domain: $(-\infty,\infty)$; Range: $[-3,\infty)$