Find and classify the absolute maximum and absolute minimum values of g(x) = x3 − 3x2 − 4 on [−1, 4]. Give the answers as ordered pairs. must show all steps

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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Author:HOUGHTON MIFFLIN HARCOURT
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Chapter9: Solving Quadratic Functions
Section: Chapter Questions
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Find and classify the absolute maximum and absolute minimum values of g(x) = x3 − 3x2 − 4 on [−1, 4]. Give the answers as ordered pairs. must show all steps

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To Determine: Find and classify the absolute maximum and absolute minimum values of g(x) = x3 − 3x2 − 4 on [−1, 4]. Give the answers as ordered pairs. 

Given: we have a function g(x)=x3-3x2-4   ,[-1, 4]

Explanation:The Second Derivative Test: find the second derivative of the function 

1) if f''(a)<0 and f''(a)=0 then there is a local maximum at x=a 

2) if f''(a)>0 and f''(a)=0 then there is a local minimum at x=a 

we have a function g(x) ,now we will find the critical points and for that we will find the derivative

                              g'(x)=3x2-6x

put g'(x)=0 then we have 

                            3x2-6x=03x(x-2)=0x=0 ,x=2

here we see that both points 0,2[-1, 4].

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