PRECAL REVIEW QUIZ

These are formed and obtained from the intersection between a double-napped cone and a plane.

• Degenerate conic section

• Conic section

• Circle

• Parabola

What is the radius for this equation:

x^2+y^2=9

 It is the midpoint between the two foci of an ellipse and hyperbola.

• center

• midpoint

• vertex

• middle

What is the radius for this equation:

x^2+y^2=.25

A conic section that is represented by the equation x2+y2=r2.

• parabola

• hyperbola

• circle

• ellipse

What is the radius for this equation:

(x-9)^2+(y-12)^2=4

Are formed when the plane is parallel to the generating line of one cone.

• hyperbola

• parabola

• circle

• ellipse

Write the standard for with the given center and radius:

1. Center: (-11, 1)

Radius: 8

• (x-11)^2 + (y-1)^2=64

• (x+11)^2 + (y-1)^2=64

• (x-11)^2 + (y+1)^2=8

• (x-11)^2+ (y+1)^2=8

These are formed when a plane intersects the cone in such a way that it passes through the apex.

• conic section

• degenerate conic section

• circle

• parabola

These are the point and the line on a conic section that are used to define and construct the curve, respectively.

• circle

• midpoint

• vertex

• focus and directrix