Use the Maximum/minimum Finder on a Graphing Calculator to Determine $$f ( x ) = 0.01 x ^ { 5 } - x ^ { 4 } + x ^ { 3 } + 8 x ^ { 2 } - 7 x + 81$$

question 168

Multiple Choice

Use the maximum/minimum finder on a graphing calculator to determine the approximate location of all local extrema.
- $$f ( x ) = 0.01 x ^ { 5 } - x ^ { 4 } + x ^ { 3 } + 8 x ^ { 2 } - 7 x + 81$$

• A) Approximate local maxima at -1.926 and 2.312; approximate local minima at 0.335 and 79.257
• B) Approximate local maxima at -1.778 and 2.322; approximate local minima at 0.384 and 79.267
• C) Approximate local maxima at -1.861 and 2.247; approximate local minimum at 0.423
• D) Approximate local maxima at -1.861 and 2.247; approximate local minima at 0.423 and 79.192

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