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Two tangents to a parabola are perpendicular to each other. On which line do they meet?
AThe latus rectum line
BThe axis of symmetry
CThe vertex tangent line
DThe directrix line
Answer & Solution
Correct answer: D. The directrix line
Perpendicular tangents always intersect on the directrix, so the directrix is the director circle analogue of the parabola.
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