Conics Graphing Circles and Ellipses

1
Conics Graphing Circles and Ellipses

• ByChristian Cabalbag,
• Amanda Porter, Justin Chadwick,and Nick
  Liefting

2
How to Solve for a Circle

• x2y2 r2
• This is the basic equation for a circle.
• With the vertex at (0,0).
• The radius is represented by r.

3
Graphing a Circle With Center at (0,0)
x2y24
4
Graphing a Circle With Center Not at (0,0)
(x-3)2 (y2)2 16
5
Basic Equation for Vertical and Horizontal
Ellipses
6
Graphing A Horizontal Ellipse
X2 y2 116 9
7
Graphing a Vertical Ellipse
x2y2 19 81
8
Practice Problem
Graph this equation for a circle with center at
(0,0) x2 y2 16
9
Answer to Practice Problem
10
Summary
We have taught you how to graph a circle with
center at (0,0) and not at (0,0) . We also
taught you about horizontal and vertical ellipses.
11
Bibliography
Larson, Ron, and Laurie Boswell, Timothy D.
Kanold, Lee Stiff. Algebra 2. Evanston,
Illinois McDougal Littell, 2001.