Answer
Every real zero of a polynomial function appears as an x-intercept of the graph.
Work Step by Step
The real zero of a polynomial is the value of the variable x at which the value of the polynomial $f\left( x \right)$ is $0$.
When one draws the graph of the polynomial, all the points where the value of $f\left( x \right)$ is $0$ will lie on the x-axis.
Hence, all the real zeros of a polynomial function appear as x-intercepts of the graph.