A plane intersects only one nappe of a double-napped cone such that it is parallel to a generating line. Which conic section is formed? circle hyperbola parabola ellipse

For the first question, the cross section would form a circle since the plane is perpendicular to the vertical axis. When the plane is parallel to the generator line, the cross section would be an ellipse. On the other hand, a hyperbola is formed when the plane intersects only one nappe of a double-napped cone, and the plane is not parallel to the generating line of the cone. 

Step-by-step explanation:

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it would be a parabola

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