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ChristLover2863
09.07.2019 •
Mathematics
Write the equation for a parabola with a focus at (0,-5)(0,−5)left parenthesis, 0, comma, minus, 5, right parenthesis and a directrix at y=-3
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Ответ:
now, keeping in mind that, the vertex is half-way between these two fellows, from y = -5 and y = -3, there are 2 units, and the vertex is half-way there. Check the picture below.
now, notice the "p" distance from the vertex to either fellow, is 1 unit, however, because the parabola is opening downwards, is negative 1.
Ответ: