Question

Given that f(x) = 2x3-3x2-72x, determine which x-values correspond to local minimums. 1) Local minimum at...

Given that f(x) = 2x3-3x2-72x,

determine which x-values correspond to local minimums.

1) Local minimum at x = -3

2) Local minimum at x = 4

3) Local minimum at x = -3 and x = 4

4) None

Math   Calculus   
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Homework Answers

Answer #1

for critical points

second derivative test

at x=-3

so x=-3 is local maximum

at x=4

so x=4 is local minimum

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