Asked by mkcolema
f(x)=2x^3-36x^2+162x-6
small critical number? Large critical number?
small critical number? Large critical number?
Answers
Answered by
GanonTEK
I'm going to guess that the question is asking for the maximum and minimum of the cubic.
Simply find f'[x] = 0 and you will find 2 values for x. To find which is the max and min find f''[x]. and put in the two different values you got [say x1 and x2] and if f''[x1]>0 it's a minimum and if f''[x1]<0 it's a maximum. The same goes for x2.
Hope that helps
Simply find f'[x] = 0 and you will find 2 values for x. To find which is the max and min find f''[x]. and put in the two different values you got [say x1 and x2] and if f''[x1]>0 it's a minimum and if f''[x1]<0 it's a maximum. The same goes for x2.
Hope that helps
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