Mathematics - Parabola Question with Solution | TestHub
MathematicsParabolaTangent to ParabolaMedium2 minQB
MathematicsMediumsingle choice
If the tangents at two points and as a parabola intersect at the point (-1, 1), then the slope of the directrix of the parabola is
Options:
Answer:
C
Solution:
: If the tangents at P and Q intersect at T, then axis of parabola is parallel to TR, where R is the mid point of P and Q . So, slope of the axis is 1.
∴ slope of the directrix .
Stream:JEESubject:MathematicsTopic:ParabolaSubtopic:Tangent to Parabola
⏱ 2mℹ️ Source: QB
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