### Home > CALC3RD > Chapter Ch9 > Lesson 9.2.2 > Problem 9-66

9-66.

Thoroughly investigate the graph of . Identify all of the important qualities, such as where the function is increasing, decreasing, concave up, and concave down. Also identify point(s) of inflection, cusps, and intercepts. Be sure to justify all statements

*graphically*and

*analytically*.

Solve to locate the extrema and determine the increasing/decreasing intervals.

Solve to determine points of inflection and the intervals of concavity.