Lesson 2.3: Quadratic Functions Expressed in Standard Form
Completion requirements
In Lesson 2.1, you focused on quadratic functions expressed in vertex form. When written in that form, you can quickly determine the coordinates of the vertex, axis of symmetry, domain and range, direction of opening, and the number of \(x\)-intercepts. Quadratic functions are not always presented in vertex form. In Lesson 2.3, you will analyze a second form called standard form.
In Lesson 2.3, you will
In Lesson 2.3, you will
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analyze quadratic functions in standard form with regards to:
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vertex
- domain and range
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direction of opening
- equation of the axis of symmetry
- \(x\)- and \(y\)-intercept,
- convert standard form into vertex form by completing the square, and
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solve problems involving quadratic functions in standard form.