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Mrs. Thetford or Mrs. Barton will not be here today. Investigating and. Quadratic function. Non-linear function that can be written in the standard form , where A parabola is the u-shaped graph of a quadratic function The parent function of a quadratic is. Quadratic Function.
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Quadratic function • Non-linear function that can be written in the • standard form, where • Aparabola is the u-shaped graph of a quadratic function • The parent function of a quadratic is
Quadratic Function • The lowest or highest point on a parabola is the vertex • The y-coordinate of the vertex is the maximum if a < 0 (a is negative) and is a minimumif a > 0 (a is positive)
a affects the width and direction the parabola opens • If 0<a< 1, the graph is wider than the parent function (compression) • If a > 1, the graph is more narrow than the parent function (stretch) • c affects the location of the graph vertically (along the y-axis) • If c is negative, the graph is shifted DOWN c units • If c is positive, the graph is shifted UP c units