Chapter 9

Question 0

Standard form of a parabola.

1. Up/down parabola
2. Left or right side parabola

Answer 0

1. (x-h)^2 = 4p(y-k)
2. (y-k)^2 = 4p(x-h)

(h,k) is the vertex.

Question 1

Standard form of a circle

Answer 1

(x-h)^2+(y-k)^2=r^2

Tip: (h,k) is the center of the circle.

Question 2

Standard form of a ellipse.
A. Horizontal major axis.

B. vertical major axis.

Answer 2

A. (X-h)^2/a^2 + (y-k)^2/b^2 = 1

B. (y-k)^2/a^2 + (x-h)^2/b^2 = 1

a is the biggest number always !

Question 3

Standard form of a hyperbola.

A. horizontal
B. vertical

Answer 3

A. (x-h)^2/a^2 - (y-k)^2/b^2 = 1

B. (y-k)^2/a^2 - (x-h)^2/b^2 = 1

a is always under the positive value