Consider the function f(x) = x*el8. For this function there are three important intervals: (– 00, A],. [A, B], and [B, 0) where A and B are the critical numbers. Find A and B For each of the following intervals, tell whether f(x) is increasing (type in INC) or decreasing (type in DEC). (- 00, A]: [A, B]: [B, ∞)

Let X be the number of hours spent studying on any given day. Which of the following is NOT true? A. P(X>10) = P(X>=10) B. P(X=10) C. P(X>10) =/= P(X>=10) D. P(X>10) =/= 1-P(X

Consider the functions f: [7] to [9].  How many of these functions have a range of {5,6}?

Identify where the function f(x) = x³ – 4x? + 8x + 1 is increasing, decreasing, concave up, and concave down. (Give your answer as an interval in the form (*,*). Use the symbol o for infinity, U for combining intervals, and an appropriate type of parentheses "(",")", "[", or "]" depending on whether the interval is open or closed. Express numbers in exact form. Use symbolic notation and fractions where needed. Enter DNE if no such interval exists.) f is increasing on: f is decreasing on: f is concave up on: f is concave down on: Use the graphing utility to graph f. f(x) = 20 y + 10 -20 -10 10 20 -10 powered by Sousep -20