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10.1 Graphing Quadratic Functions p. 17

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Quadratic Functions Definition: a function described by an equation of the form f(x) = ax 2 + bx + c, where a ≠ 0. Examples: y = 3x 2 - 2x + 1f(x) = -5x 2 + 9 g(x) = -7x 2 y = x 2 + 4x + 2

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Quadratic Functions f(x) = ax 2 + bx + c When a is positiveWhen a is negative

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Use a table of values to graph the Quadratic Function y = 2x 2 - 4x - 5 xy -211 1 0-5 1-7 2-5 31 411

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Use a table to graph the Quadratic Function y = -x 2 + 4x - 1 xy

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Vertex and Axis of Symmetry

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Graphing Quadratic Functions

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Graph f(x) = -3x 2 - 6x + 4

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