Students have been learning about polynomial functions. They first learned how to evaluate a function for a given value of x, both with direct and synthetic substitution. Using their understanding of synthetic substitution, students were able to divide polynomials using synthetic division. They later used this knowledge to determine if a given value was a zero of a function. Using everything they learned about polynomial functions, students were able to determine how many zeros a function would have, what the possible rational zeros were, and how many positive and negative real zeros it would have. Finally, students combined this knowledge with their use of synthetic division and the quadratic formula to find all the zeros of a function.
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May 2015
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