a) Find the values a such that the average value of the function f(x) = 10 − 4x + 9x^2 on the interval [−a, a] is equal to 22.

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ChapterA: Appendix
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a) Find the values a such that the average value of the function

f(x) = 10 − 4x + 9x^2 on the interval [−a, a] is equal to 22.

b) Show that if f''(x) < 0 for x ∈ [a, b], then 1/2[f(a) + f(b)] < favg < f[(a+b)/2]

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