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# HW-Class-26: Problem 13 [2 points} Let x] = ln{x4 + 432) . Answer the following questions. Find the intervas} on which 3&quot; is increasing. Answer...

Hi I tried doing this problem using a graphing calculator, but I was wondering if it's possible to find local maxima and minima without using a graphing calculator?

HW-Class-26: Problem 13 [2 points} Let ﬂx] = ln{x4 + 432) . Answer the following questions. 1. Find the intervaﬂs} on which 3“ is increasing.
Answer ﬁn interval notation}: {UJNF} 2. Find the intervaﬂs} on which f is decreasing.
Answer ﬁn interval notation}: {-Inf.ﬂ} 3. Find the local maxima off. List your answers as points In the form (a. in).
Answer (separate by commas}: 4. Find the local minima of f List your answers as points In the term (a. b].
Answer (separate by commas]: {0.0.6} 5. Find the intervaﬂs} on which 3“ is concave upward.
Answer ﬁn interval mutation}: E. Find the intervaﬂs} on which 3“ is concave downward.

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