This quiz: 15 point(s) possible This question: 1 point(s) possible Submit quiz Given the following function, (a) find the vertex; (b) determine whether there is a maximum or a minimum value, and find the value; (c) find the range; and (d) find the intervals on which the function is increasing and the intervals on which the function is decreasing. f(x) = - 8x- - 24x +5 (a) The vertex is (Type an ordered pair, using integers or fractions.) (b) Determine whether the parabola has a maximum value or a minimum value and find the value. Select the correct choice below and fill in the answer box within your choice. (Type an integer or a fraction.) O A. The parabola opens downward and has a maximum value of O B. The parabola opens upward and has a minimum value of (c) What is the range of f(x)? The range of f(x) is