Question

The points plotted below are on the graph of a polynomial. In what range of x-values must the polynomial have a root?

Check all that apply.



A. -1 to 0
B. -2 to 1
C. 3 to 4
D. 2 to 3
E. 1 to 2
F. 0 to 1

Answer 1

Explanation:

This parabolic graph intersects the x-axis in two places, so there are actually two roots. One such intersection is between 1 and 2, and the other is between 2 and 4. These facts are easily verified by inspection.