D Question 5(Multiple Choice Worth 10 points) I (05.04 MC) Let h be a continuous function forx > 0, with its first derivative given by \"()0 = -2x+6x1 -1. Determine the interval(s) where the graph of h is concave down. 0 (o, 0.5) O (0.687, 00) O (0, 0.687) O (0.5, cc) |||| * Question 7(Multiple Choice Worth 10 points) (05.04 MC) Selected values of f ' and f ", where f is a twice-differentiable function, are shown in the table. X -2 -1.5 -7 -0.5 0 0.965 f '(x) 12 0 -3 -1.5 0 -13.77 -15 f " (x) -36 -13.5 0 4.5 0 -34.13 -36 Which of the following statements is true? Of has a local minimum at x = -1 Of has a local maximum at x = -1 Of has a local minimum at x = -1.5 Of has a local maximum at x = -1.5