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Worksheet 11: Calculus Part 2 - Maths At Sharp

SOLVED:9-10 A sign chart is presented for the first and second derivatives of a function f. Assuming that f is continuous everywhere, find: (a) the intervals on which f is increasing, (b) the intervals on which f is decreasing, (c) the open intervals on which f is concave up, (d) the open intervals on which f is concave down, and (e) the x -coordinates of all inflection points. INTERVAL SIGN OF f^'(x) SIGN OF f^''(x) x<1 - 1<x<2 2<x<3

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