Question: In each case below, select the best answer to the question. (a) The graph of f(x) is shown below. What is the sign of the

 In each case below, select the best answer to the question.

In each case below, select the best answer to the question. (a) The graph of f(x) is shown below. What is the sign of the second derivative of f(x) ? 10 1I (b) The formula for g is given by 900 = ax2 + bx + 503 for some positive constants a and b. What is the sign of the second derivative of 900 ? (c) Some values of a function 5 are shown in the table below. What is the sign of the second derivative of 500 ? I x I 5 I 6 I 7 I 8 I 500 I43 I44 I46 I49 (d) Some values of the derivative of a function T are shown in the table below. What is the sign of the second derivative of T(x) ? IfITITITIT I T'(X) I99 I94 I90 I87

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