If Xo and X, are two numbers with Xp< X, then the true one is None of the above A O F(XO ) F(X1) BO F(X0) = F(X1) .CO F(XO) < F(X1) .D O

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Q: Which of the following could be true if f'(x) = -x O f"(x) = 3 f"(x) = 4x f(x) = -æ O f(x) = -x

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.