
Quadratic Equations
In Quadratic Equations, we make the relationship between quadratic functions and
quadratic equations explicit. Because textbooks and tests devote a great
deal of time to the skills of factoring and finding roots, participants
also use graphical means, as well as successive approximations in
tabular form, to reach the same goal.
Professional Development Goals
 Identify
the three symbolic forms for quadratic equations—polynomial,
product, and vertex—and clarify how each form's role informs
not only its graphic representation, but how to find the root
of its function
 Delineate
techniques for solving quadratic equations by comparing quadratic
functions, both graphically and symbolically
 Solve quadratic
inequalities, in both graphic and symbolic forms, as a natural
extension of comparing functions
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