Directions The following function f x has one relative maximum and one relative minimum point Find these points using the First Derivative Test and a sign chart f x x 27x Part 1 Critical Numbers 1 Find the derivative f x 2 List the z values where f x 0 separate by commas Part 2 Intervals of Increase and Decrease Since there are two critical numbers there should be three intervals to consider on our sign chart State the indicated interval below and whether the function is increasing or decreasing there Help with entering help intervals 1 The left most interval is and there the function is inc or dec 2 The middle interval is 3 The right most interval is and there the function is inc or dec and there the function is inc or dec