In order to determine the solution from a graph, you need to have a graph. The picture is a graph of the function f[x] = x

The solutions to f[x]=0 are given by the x-intercepts of the graph of f[x]. These are x=-2, and x=4.

The graph has a minimum at (x, y) = (1, -9).

^{2}-2x -8.The solutions to f[x]=0 are given by the x-intercepts of the graph of f[x]. These are x=-2, and x=4.

The graph has a minimum at (x, y) = (1, -9).