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Finding the Equation of a Polynomial Function





 

Videos, worksheets, solutions, and activities to help PreCalculus students learn how to find the equation of a polynomial function.

Related Topics:
More Algebra Lessons

More PreCalculus Lessons


Finding the Equation of a Polynomial Function:
Once we know the basics of graphing polynomial functions, we can easily find the equation of a polynomial function given its graph. To find polynomial equations from a graph, we first identify the x-intercepts so that we can determine the factors of the polynomial function. We can also identify the sign of the leading coefficient by observing the end behavior of the function.
How we identify the equation of a polynomial function when we are given the intercepts of its graph. How to Find the Equations of a Polynomial Function from its Graph - Precalculus Tips.
This video gives step-by-step directions on how to find the equation of the graph of a polynomial function.



Finding the Formula for a Polynomial Given: Zeros/Roots, Degree, and One Point - Example 1.
If you know the roots of a polynomial, its degree and one point that the polynomial goes through, you can sometimes find the equation of the polynomial.
Finding the Formula for a Polynomial Given: Zeros/Roots, Degree, and One Point - Example 2.
If you know the roots of a polynomial, its degree and one point that the polynomial goes through, you can sometimes find the equation of the polynomial.


 
Finding the Formula for a Polynomial Given: Zeros/Roots, Degree, and One Point - Example 3.
If you know the roots of a polynomial, its degree and one point that the polynomial goes through, you can sometimes find the equation of the polynomial.
Find an Equation of a Degree 4 Polynomial Function From the Graph of the Function
This video explains how to determine an equation of a polynomial function from the graph of the function.


Find an Equation of a Degree 5 Polynomial Function From the Graph of the Function.
Determine Polynomial from its Graph
How to determine the equation of a polynomial from its graph. This includes taking into consideration the y-intercept.


 

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You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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