We need to tabulate all the zeros of the graph which are nothing but the x-intercept of the graph.
We need to assign a specific coefficient to each of the terms in the polynomial function. For ex - A quadratic equation has three terms, including a constant term, and is written as ax2 + bx + c, where a, b is the coefficient, while c is the constant term.
The value of the coefficient is calculated by using the known values of f(x) at certain x-values taken from the graph and forming equations with coefficients as solutions to them.
Finally satisfying all the zeros of the curve and hence, getting the desired result.
Hence, the solution of the equation of the polynomial is completed only by the detailed analysis of the graph values used to find the unknown values of the polynomial.