The locus of a point moving under the condition that the line is a tangent to the hyperbola is
- (A)an ellipse
- (B)a circle
- (C)a parabola
- (D)a hyperbola✓ Correct
Answer: (D)
Solution
A line of slope is tangent to exactly when its intercept satisfies . For the line this means . Replacing by , the locus of the point is , which is a hyperbola.
JEE Main · 2005 · 08 May 2005 · Offline · Single correct option