Factored Form (y= a(x-r)(x-s)) The x intercept(s) of the equation are the r and the s value in the formula. If the number is a positive the number will be negative on the graph. If the number is a negative the number will be a positive on the graph.
A example of a question for x-intercepts would be: Find the x-intercepts from y=(x-8)(x+2) The two x-intercepts would be 8 and -2 because that is the r and the s value.