# Algebra: Conic Sections: Intro to Circles

An introduction to the circle.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

An introduction to the circle.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An introduction to the ellipse.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An introduction to the hyperbola and conic sections.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This algebra lesson explains the connection between even and odd numbers and ... (more)

This algebra lesson explains the connection between even and odd numbers and functions. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An introduction to understanding direct and inverse variation.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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A demonstration of dividing complex numbers and complex conjugates. [Algebra: Lesson 35 ... (more)

A demonstration of dividing complex numbers and complex conjugates. [Algebra: Lesson 35 of 86] (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An explanation of how to figure out the domain of a function.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An algebraic brain teaser.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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How to recognize odd and even functions.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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How to determine the formula for fixed mortgage payments using the sum ... (more)

How to determine the formula for fixed mortgage payments using the sum of a geometric series. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This lesson shows how to find the focus and directrix of a ... (more)

This lesson shows how to find the focus and directrix of a parabola. [Algebra: Lesson 67 of 86] (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An introduction to the foci, or focuses, of a hyperbola.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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How to calculate the foci, or focuces, of an ellipse.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This lesson shows how to find the focus and directrix of a ... (more)

This lesson shows how to find the focus and directrix of a parabola. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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A presentation of examples of variables varrying directly and inversely.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This lesson demonstrates how to solve function problems.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This lesson concludes the demonstrations of function exercises and introduces the graph ... (more)

This lesson concludes the demonstrations of function exercises and introduces the graph as a definition of a function. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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This is an example of a function problem that was submitted bya ... (more)

This is an example of a function problem that was submitted bya YouTube viewer. (less)

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An introduction to graphing linear equations.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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An introduction to how to identify and graph conic sections.

- Subject:
- Mathematics and Statistics
- Material Type:
- Video Lectures
- Collection:
- Khan Academy
- Provider:
- Khan Academy
- Author:
- Khan, Salman

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