Problem 106 of 7
Find the vertex of a parabola with focus (-8,-2) and directrix x=-4.
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locate midpoint between focus and directrix along axis.
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Vertex is halfway between focus and directrix along the axis of symmetry.
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Solution
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1. Identify whether directrix is horizontal or vertical.
2. Move from focus perpendicularly to the directrix.
3. Find the halfway point.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Averaging coordinates unrelated to the directrix orientation.