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**Please Help! Line passing through an Ellipse and a Point**

## Homework Statement

Hi guys, I'm new to the forum and I could really use some help with this problem.

There is an ellipse with the equation: (X^2/4) + Y^2 = 1

There is a point on the graph (4,0)

Find an equation that passes through the line and the point...(must use the chain rule)

## Homework Equations

(X^2/4) + Y^2 = 1

## The Attempt at a Solution

I attempted to derive the slope of the circle: (DY/DX) = (-.5X)/(2Y)...

What do I do from here? Was that part even right? Thanks!

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