Answer:
The graph represents a polynomial of grade 3. Ther curve has two passes at y=0 in the values of x equal to -1 and to -2, a maximum approximately at x = -1.5 and a minimum approximately at x equals to 2.25. In the attached figures are shown the curve in at extended range and in the right, the zoom shows the two zeros, the maximum and the minimum.
Step-by-step explanation:
