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Learn the concepts of hyperbolas and parabolas, including equations, properties, and graphs in this detailed review. Gain insight into vertices, directrix, focal points, and more.
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7.) Since we know the graph opens left and right the term with x2 is first.
8.) Since the x is squared and the p is positive, the graph opens up. That means the focus is 3 units to the up and the directrix is 3 units down. To find another point on the graph, double your p and move that many units from the focus.
Write the equation of a parabola with a vertex at (6, 2) and a directrixx=2. 13.) Parabolas open up away from the directrix. Since this parabola opens to the right, the equation has y2 and p is positive. The distance from the directrix to the vertex is 4 so p=4