The locus of a point P(alpha, beta) mov...

The locus of a point `P(alpha, beta)` moving under the condition that the line `y = alphax + beta` is a tangent to the hyperbola `x^2/a^2-y^2/b^2 =1` is

A

an ellipse

B

a circle

C

A parabola

D

a hyperbola

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The correct Answer is:

D

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