Description
In this lesson, students understand that it takes three points to determine a unique quadratic function. They use data sets to write quadratic functions with and without context. For convenience, the points used in the following exercises have known 𝑦-intercepts and can be modeled precisely by quadratic functions with rational coefficients; however, teachers should remind students that in real life, data sets are unlikely to be able to be modeled with any function with 100% accuracy.
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Credits
From EngageNY.org of the New York State Education Department. Algebra I Module 4, Topic C, Lesson 24.
Available from engageny.org/resource/algebra-i-module-4-topic-c-lesson-24; accessed 2015-05-29.
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