Draw sign charts for f’ and f” . Where Is f increasing, decreasing, concave up, concaving down? At which x-values do relative minima, maxima, and inflection points occur?

Question

Draw sign charts for f’ and f” . Where is f increasing, decreasing, concave up, concaving down? At which x-values do relative minima, maxima, and inflection points occur?

a) f(x)= x^3-6x^2-15x+46

b) f(x)=(x^2+5)/(x+2)

Answer 1

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