Question

The function f(x) is shown on the graph.

If f(x) = 0, what is x?


0 only

–6 only

–2, 1, or 3 only

–6, –2, 1, or 3 only


C is the correct answer.

Answer 1

–2, 1, or 3 only

Explanation:

The x-values of the points at which the graph touches the x-axis are the points at which
`f(x)=0`

This is called the x-intercepts.

From the graph the x-intercepts are (-2,0),(1,0) an (3,0).

Therefore f(x)=0 at x=-2,1,3