Randy is taking his math sat. to receive full credit, he must answer this question: what key features are necessary—and how are the features used—to create the sketch of a polynomial function? what is randy's correct answer, so he receives full credit for the question? explain in complete sentences.

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Randy should know the "zeros" of the polynomial function for sketching the graph of it (where the graph intersects with the x an y-axises, if it does). Also, he needs to know the vertical and horizontal stretches/shrinks for that. Finally, he should know the basic function of the polynomial function such as x^2, 1/x and etc.