Learn about the graphs of circles, and how their center and radius are represented algebraically.
Introduction_to_conic_sections
Conic sections are formed when you intersect a plane with a cone. In this tutorial, you will learn more about what makes conic sections special.
Learn about the standard form to represent a circle with an equation. For example, the equation (x-1)^2+(y+2)^2=9 is a circle whose center is (1,-2) and radius is 3.
Learn how to analyze an equation of a circle that is not given in the standard form. For example, find the center of the circle whose equation is x^2+y^2+4x-5=0.
A parabola is the set of all points equidistant from a point (called the focus) and a line (called the directrix). In this tutorial you will learn about the focus and the directrix, and how to find the equation of a parabola given its focus and directrix.
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