Consider the function f() = 4x + 7x7. For this function there are four important intervals: ( - 00, A], [A, B), (B, C], and [C, co) where A, and O 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 O For each of the following intervals, tell whether f(@) is increasing or decreasing. ( - 00, A) : Select an answer V [A, B): Select an answer V (B, C): Select an answer V [C, 00) |Select an answer V