### Home > PC3 > Chapter Ch8 > Lesson 8.3.5 > Problem 8-156

8-156.

Let . Assume

*.*

Sketch a possible graph for

.Begin by sketching the axes. Mark locations on the

-axis for,,, and. Then sketch a polynomial curve with roots at,, and, a double root at, and a triple root at.Solve

.Where is your curve below or touching the

-axis?Solve

. When do

andhave opposite signs?

For example, where is the curve above the-axis on the left side of the-axis?