Let f(x) = x^3 + ax^2. What is the value ofaif

(a) f has a local minimum at x = 4?

(b) f has a point of inflection at x = 6?

How do I findagiven the local minimum and point of inflection?

Thanks.

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- Apr 7th 2010, 08:32 PMSåxonLocal minimum and inflection
Let f(x) = x^3 + ax^2. What is the value of

*a*if

(a) f has a local minimum at x = 4?

(b) f has a point of inflection at x = 6?

How do I find*a*given the local minimum and point of inflection?

Thanks. - Apr 7th 2010, 08:39 PMpaupsers
- Apr 7th 2010, 09:00 PMSåxon
Ah, i see, thanks.