Calculus with maximum minimum relationships

Consider the function f(a) = 2x + 5x . For this function there are four important intervals: ( - 0o, A], [A, B), (B, C], and [C, co) where A, and C are critical numbers and the function is not defined at B. Answer the following questions and round your answers to four decimals as needed. Find A Find B Find C For each of the following intervals, tell whether f(x) is increasing or decreasing. ( - 00, A]: Select an answer [A, B): Select an answer v (B, C): Select an answer v [C, 00) Select an answer Question Help: Message instructor