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21 Quadratic Functions amp Parabolas
2.1 quadratic functions & parabolas graphing parabolas: 1. standard form: f ( x) a( x h)2 k find vertex (h, k) and make a tchart. *note: if a 0 , the parabola opens and the vertex is a . if a 0 , the parabola opens and the vertex is a . 2....
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