Unit 7 Quadratics! Section 9.2 Characteristics of Quadratic Functions Guided Notes “Zeros,” or solutions, to a quadratic are the points where the graph touches the x-axis, aka x-intercepts. (i.e. where y = 0). Axis of symmetry: A vertical line that divides a parabola into two equal halves. Vertex: The tip of the parabola. Either the Minimum or Maximum point depending on if the graph opens upwards or downwards, respectively. What is the domain of this function? All x values What is the range? ! ≥ −4 What is the increasing interval? ! > −2 What is the decreasing interval? ! < −2
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Unit 7 Quadratics! Section 9.2 Characteristics of Quadratic Functions
Guided Notes “Zeros,” or solutions, to a quadratic are the points where the graph touches the x-axis, aka x-intercepts. (i.e. where y = 0). Axis of symmetry: A vertical line that divides a parabola into two equal halves. Vertex: The tip of the parabola. Either the Minimum or Maximum point depending on if the graph opens upwards or downwards, respectively. What is the domain of this function? All x values What is the range? ! ≥ −4 What is the increasing interval? ! > −2 What is the decreasing interval?