How to find the -intercepts of a parabola?
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DISCOVER: Vertex and -Intercepts We know that the graph of the quadratic function is a parabola. Sketch a rough graph of what such a parabola wouldlook like. What are the x-intercepts of the graph of ? Can you tell from your graph the -coordinate of the vertex in terms of and ? (Use the symmetry of the parabola.) Confrm your answer by expanding and using the formulas of this section.
How to find x-intercepts and y-intercepts of a graph of an equation?
How do you find x-intercepts and y-intercepts of a graph of an equation?