Let's take a look at the equation you gave:

To find the y-intercept you set in the equation and this will give you the y co-ordinate of the point where f(x) crosses the y-axis.

so i.e. crosses the y-axis at the point (0,10).

To find the x-intercept you set , i.e.

The easiest way to do this is to factorise:

or

(If factorising doesn't work use the quadratic formula .)

So crosses the x-axis at the points (2,0) and (5,0).