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10.1 Graphing Quadratic Functions p. 17
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
Quadratic Functions f(x) = ax 2 + bx + c When a is positiveWhen a is negative
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