MATH 1113 Precalculus 3.3 notes
A _______________________ is a function of the form: ______________________________
where a, b, and c are real numbers and a ≠ 0 (Why?). The domain of a quadratic function consists of
__________________________.
Examples of quadratic functions:
Properties of the quadratic function:
_____________________________________________
The Vertex = _______________________________
Axis of symmetry: _________________________
Parabola opens up if a > 0; the vertex is a
___________________ point.
Parabola opens down if a < 0; the vertex is a
___________________ point.
For the following quadratic functions, find x and y-intercepts, axis of symmetry, vertex, and finally graph the equation.
Also, state the domain and range.
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