ACT SAT Prep How to determine the number of intercepts of a polynomial factored

The video tutorial explains how to determine the number of times a polynomial graph intersects the X-axis. It uses a quadratic example, y = X^2 - 4, to demonstrate the process of finding intersection points by setting Y to zero. The tutorial covers factoring techniques to find roots and concludes by applying these methods to solve the original problem, identifying five X-intercepts.

What are the values of X where the quadratic intersects the X-axis?

Explain the significance of the roots of the quadratic equation in relation to the graph.