Question

which term describes the red curve in the figure below?
a. ellipse
b. hyperbola
c. circle
d. parabola

Explanation:

When a plane intersects a double - napped cone as shown, and the plane cuts through both nappes of the cone, the resulting curve is a hyperbola. An ellipse and circle are formed when the plane intersects only one nappe, and a parabola is formed when the plane is parallel to the side of the cone and intersects one nappe.

Answer:

B. Hyperbola