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Precalc
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Conic sections
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Standard equation of a circle
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Intro to conic sections
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Center and radii of an ellipse
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Foci of an ellipse
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Intro to hyperbolas
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Foci of a hyperbola
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Hyperbolas not centered at the origin
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Functions and relations
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Composition of functions
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Operations with functions
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Graphing the sum of trig functions from their graphs
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Finding and verifying the inverse of a nonlinear function
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Graphically finding the increasing, decreasing, and constant intervals
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Vertical and horizontal line tests
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Restrict the domain then find the inverse
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Sketching the inverse of a function from its graph
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Characteristics of functions
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Finding extrema graphically
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End behavior
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Rational functions
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Simplifying the difference quotient
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Partial fraction decomposition
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Sigma notation and the binomial theorem
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Converting sums between sigma notation and expanded form
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Properties of sigma notation
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Using the binomial theorem
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Precalc
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Conic sections
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Other resources
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Circles (conic sections)
Finding the center and radius of a circle by completing the square
Learn how to find the center and radius of a circle by completing the square.
YouTube videos
5103
Finding the Center-Radius Form of a Circle by Completing the Square - Example 3
patrickJMT
5104
Finding the Center and Radius of a Circle by Completing the Square
The Math Sorcerer
5105
How to find the center and radius of a circle in standard form
Brian McLogan
29737
How to find equations of a circle by completing the square
Ms Shaws Math Class
1530
Applications of Completing the Square (2 of 2: Finding a circle's centre)
Eddie Woo