Question

How many roots does the graph polynomial function have?

A. 2
B. 3
C. 4
D. 1

Answer 1

The number of roots of the graph is 3

B is correct.

Explanation:

We are given a graph of polynomial.

Graph start from negative infinity and end at positive infinity.

The degree of polynomial must be odd.

In graph, we can see it cuts at three points

(-6,0) (-2,0) (-1,0)

This graph has three x-intercept.

Number of x-intercept is equivalent to real roots of the polynomial.

This graph is cubic polynomial because it has three x-intercept.

Hence, The number of roots of the graph is 3

Answer 2

The graph crosses the x axis 3 times so there are 3 roots.

B