(1 point) Leta, h, and k be arbitrary real numbers with a. # 0, and let f be the function given by the rule ac) : a(m i h)2 + 3:. Which of the following statements are true about f? Select all that apply. [T] A. If a > 0, then f has a global maximum. C] B. An extreme value occurs at the point (in, k). [T] C. The graph of y : f(3) is a line. C] D. The graph of y : f(:!3) is a parabola. C] E. lfa > 0, then f has a global minimum. F] F. The maximum value of f(:12) is h. C] G. None of the above Next we use some calculus to develop familiar ideas from a different perspective. To start, treat a, h, and k as constants and compute ve)- f'tw) = Find a critical value off. (This will depend on at least one of a, h, and k.) Critical value = Assume that a