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olga_2 [115]
3 years ago
9

What is the equation of the directrix of the parabola given by the equation (y − 3)2 = 8(x − 5)?

Mathematics
1 answer:
Licemer1 [7]3 years ago
8 0
The vertex of the parabola is at (5,3) and its focal length is 8/4 = 2.
Since it opens to the right, the directrix will be a vertical line 2 units to the left of the vertex, so its equation will be x=(5-2), or x=3
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