• #### The Circle - Problem 11

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to transform a general form circle to standard form by completing the square.
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• #### Parametrizing a Circle - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to write the parametric equations of a circle centered at (0,0) with radius r, oriented counter-clockwise.
• #### Parametrizing a Circle - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to find parametric equations of a circle centered at (3,4) with radius 5, oriented counter-clockwise.
• #### The Circle - Problem 1

##### Math›Precalculus›Conic Sections
How to find the equation for a circle given the center and radius.
• #### The Circle - Problem 1

##### Math›Algebra 2›Conic Sections
How to find the equation for a circle given the center and radius.
• #### The Circle - Problem 4

##### Math›Precalculus›Conic Sections
How to use two endpoints of a diameter to create the equation for a circle.
• #### The Circle - Concept

##### Math›Precalculus›Conic Sections
How to use the distance formula to derive the equation for a circle.
• #### The Circle - Problem 4

##### Math›Algebra 2›Conic Sections
How to use two endpoints of a diameter to create the equation for a circle.
• #### The Circle - Concept

##### Math›Algebra 2›Conic Sections
How to use the distance formula to derive the equation for a circle.
• #### The Circle - Problem 2

##### Math›Precalculus›Conic Sections
How to find the center and radius of a circle given an equation.
• #### The Circle - Problem 2

##### Math›Algebra 2›Conic Sections
How to find the center and radius of a circle given an equation.
• #### Parametrizing a Circle - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find parametric equations of a semicircle centered at (0,0) with radius 12, oriented counter-clockwise.
• #### Introduction to Parabolas - Problem 3

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation of a parabola given the vertex.
• #### Introduction to Parabolas - Problem 4

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation for a parabola given specific points.
• #### Introduction to Parabolas - Problem 8

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
Writing equations for equations back and forth between standard and vertex form
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• #### Introduction to Parabolas - Problem 5

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
How to write the equation for a parabola from a graph or from the vertex and one other point
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• #### Finding Intercepts, Domain, Range and Vertex of a Parabola - Problem 7

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
Identifying key features of a parabola whose equation is provided in vertex form
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• #### Finding the Vertex of a Parabola by Completing the Square - Problem 8

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
Using completing the square to change a quadratic equation from standard for vertex form when "a" is one and "b" is odd
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• #### Finding the Vertex of a Parabola by Completing the Square - Problem 7

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
Using completing the square to change a quadratic equation from standard for vertex form when "a" is one and "b" is even
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• #### Finding Intercepts, Domain, Range and Vertex of a Parabola - Problem 4

##### Math›Precalculus›Equations of Lines, Parabolas and Circles
Finding key features of a parabola from a quadratic equation that has imaginary solutions
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