What progress have you made with this problem? It would help if you showed some attempt at the problem.
a) Find approximate x values for max/min points.
b) Set up a table showing intervals of increase or decrease and the slope of the tangent on those intervals.
c) Set up a table of values showing "x" and its corresponding “slope of tangent” for at least 7 points
d) Sketch the graph of the derivative using the table of values from (c)