In this Early Edge video lesson, you'll learn more about Parts of a Circle, so you can be successful when you take on high-school Math & Geometry.
The Princeton Review
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A helpful scientific calculator that runs in your web browser window.
Holt Online Learning
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This page gives a chart summarizing the equations of the conic sections: circle, hyperbola, parabola and ellipse.
Math 2.org
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
Paul's Online Math Notes
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A site with step by step tutorials on how to draw and graph a variety of mathematical functions
Analyze Math
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Online graphing calculator, useful for drawing out a function to visualize it or find key points.
http://www.coolmath.com
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Shows 3-D diagram of the 4 types of conic sections. Explains how to use determinant to establish the type of section.
Spark Notes
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A tutorial which includes a video and several examples problems on graphing circles and writing circle equations.
Algebra Lab
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In this video, Salman Khan of Khan Academy explains conic sections and circles.
Khan Academy
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A breakdown of all the major conic sections on one webpage with their general equations and graphs. It includes information on parabolas, circles, ellipses, and hyperbolas.
James Jones' College Algebra Lecture Notes (Math 116)
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