Pre-Cal 1st grading

reviewer 2

Triangle

All are figures that can be formed when a cone is cut by a plane, except

Circle

A = C

Parabola

A = 0 or C = 0

Ellipse

A and C have the same signs

Hyperbola

A and C have opposite signs

x^2 + 3y^2 − 4x + 6y − 13 = 0

Ellipse

3x^2 + 3y^2 + 6x + 6y − 4 = 0

Circle

4y^2 − 2x + 8y + 10 = 0

Parabola

3x^2 + 5x − y + 2 = 0

Parabola

5x^2 − 4y^2 − 10x + 16y − 25 = 0

Hyperbola

−x^2 − y^2 + 3x − 5y + 20 = 0

Circle

Circle

(x − h) ^2 + (y − k)^2 = r

Parabola

(x − h) ^2 = ±4p(y − k)

Ellipse

(x − h)^2/a^2 + (y − k)^2/b^2 = 1

Conic

The section obtained if a plane is made to cut a double right circular cone.