Question 8 Desmos Graphing Calculator Link Consider the function f(x) - 8(x - 2) . For this function there are two important intervals: (- , A) and (A, co) where A is a critical number. A is For each of the following intervals, tell whether f(x ) is increasing or decreasing. ( - 0o, A): Select an answer v (A, 0): Select an answer v For each of the following intervals, tell whether f(x ) is concave up or concave down. (- 0, A): Select an answer v (A, ): Select an answer v Question Help: [Video D Post to forum Submit Question Jump to Answer e he X N O W O P