# How to Write an Equation With Foci?

Foci are points related to geometric shapes in such a way that they serve as defining characteristics for those shapes. The most important among them are the conic sections, which include the circl...
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http://www.ehow.com/how_8513309_write-equation-foci.html

## How to Write an Equation With Two Endpoints?

Given two endpoints, you can find the equation of a line or of a circle. The standard equation for a line is y=mx+b, where m represents the slope of the line and b is where the line crosses the y-a...
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## How to Write an Equation for an Ellipse With the Focus and Vertices?

An ellipse looks like a flattened circle. Unlike a perfect circle, an ellipse is longer on one side and shorter on the other. It describes the pattern in which planets orbit the sun. If you know th...
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http://www.ehow.com/how_8490716_write-equation-ellipse-focus-vertices.html

## How to Write a Quadratic Equation With Given Roots?

Solving a quadratic equation can be confusing to both younger and older math students. Adding to the confusion is what method will work best in solving a particular equation or if the equation can ...
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http://www.ehow.com/how_8485955_write-quadratic-equation-given-roots.html

## How to Write an Equation?

Are you having a hard time with math and need help writing an equation? Well, you clicked on the right link! Here we go!

http://www.wikihow.com/Write-an-Equation