Question

The graph of the function f(x) is shown below. When f(x) = 0, determine x

Answer 1

ANSWER

When f(x)=0,


`x = - 1.8`

EXPLANATION

The given graph represents a polynomial function.

The roots of f(x) are the x-intercepts of the function.

The x-intercepts are the x-values of the points where the graph of the polynomial function meets the x-axis.

From the graph, the only point where the graph meets the x-axis is


`(-1.8,0)`

At this point f(x)=0 and
the x-value of this point is

`x = - 1.8`

Answer 2

When f(x) is 0, then x is -1.8.

Explanation:

To find this, you simply have to look for the place where the line crosses the x axis. This is where y (or f(x)) is equal to 0. Since this graph only crosses that axis at x = -1.8, that is the number we are looking for.