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Professor Dave Explains
History of Astronomy Part 4: Kepler's Laws and Beyond
The heliocentric model of Copernicus was extremely controversial in its time, but it wasn't the end of the story. Johannes Kepler used the data of his boss, Tycho Brahe, to further corroborate it, but also show that the planets do not...
Brian McLogan
What are the formulas for vertical and horizontal ellipses conic sections
Learn all about ellipses for conic sections. We will discuss all the essential definitions such as center, foci, vertices, co-vertices, major axis and minor axis. We will also discuss the essential processes such as how to graph and...
msvgo
Cartesian Equation of Ellipse
It defines ellipse as the locus of a point, its associated terms. It also derives the Cartesian standard equation of ellipse.
Brian McLogan
how to determine the foci and vertices of a hyperbola
Learn how to graph hyperbolas. To graph a hyperbola from the equation, we first express the equation in the standard form, that is in the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2 - (x - h)^2...
Brian McLogan
Graphing an ellipse and identify the major parts
Learn how to graph horizontal ellipse not centered at the origin. A horizontal ellipse is an ellipse which major axis is horizontal. To graph a horizontal ellipse, we first identify some of the properties of the ellipse including the...
Brian McLogan
Conics what is the formula for a circle
Learn all about the definition and formula that makes up a circle. Understanding the basics of circles will help us graph and write the equation of circles to solve future problems in conic sections. A circle has a center (h,k) and...
Brian McLogan
Given vertices and asymptotes, write the equation of the hyperbola
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Brian McLogan
How to write the equation of a parabola given vertex and directrix
Learn how to write the equation of a parabola given the vertex and the directrix. A parabola is the shape of the graph of a quadratic equation. A parabola can open up or down (if x is squared) or open left or right (if y is squared)....
Brian McLogan
Learn how to classify conic sections
Learn how to classify conic sections. A conic section is a figure formed by the intersection of a plane and a cone. A conic section may be a circle, an ellipse, a parabola, or a hyperbola. The general equation of a conic section is given...
Brian McLogan
Conics - Find the formula for a hyperbola
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Brian McLogan
Understanding how to find the foci and vertices of an ellipse conic sections
Learn all about ellipses for conic sections. We will discuss all the essential definitions such as center, foci, vertices, co-vertices, major axis and minor axis. We will also discuss the essential processes such as how to graph and...
Brian McLogan
What is the definition of a hyperbola
Learn all about hyperbolas. A hyperbola is a conic section with two fixed points called the foci such that the difference between the distances of any point on the hyperbola from the two foci is equal to the distance between the two...
Brian McLogan
Finding the vertices, foci and asymptotes of a hyperbola
Learn how to graph hyperbolas. To graph a hyperbola from the equation, we first express the equation in the standard form, that is in the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2 - (x - h)^2...
Brian McLogan
Learn how to find the equation of a parabola given focus and vertex conic sections
Learn how to write the equation of a parabola given the vertex and the focus. A parabola is the shape of the graph of a quadratic equation. A parabola can open up or down (if x is squared) or open left or right (if y is squared). Recall...
Brian McLogan
Everything you need to know for conic sections Ellipses
Learn all about ellipses for conic sections. We will discuss all the essential definitions such as center, foci, vertices, co-vertices, major axis and minor axis. We will also discuss the essential processes such as how to graph and...
Khan Academy
Khan Academy: Algebra: Conic Sections: Proof: Hyperbola Foci
A video lesson giving an algebraic proof of the formula for the foci of a hyperbola. [14:50]
Khan Academy
Khan Academy: Algebra: Conic Sections: Foci of a Hyperbola
A video lesson exploring the foci of a hyperbola. The formula for finding the foci is derived algebraically and then applied to a specific hyperbola equation. Shows that the foci of a hyperbola relate closely to the foci of an ellipse....
Khan Academy
Khan Academy: Algebra: Conic Sections: Foci of an Ellipse
A video lesson exploring the foci of an ellipse. The formula for finding the foci is derived algebraically and then applied to a specific ellipse equation. [13:49]
Virtual Nerd
Virtual Nerd: What Is an Ellipse?
This tutorial explores the multiple definitions of an ellipse and shows its specific shape and all its different parts. [5:44]
Khan Academy
Khan Academy: Algebra: Proof: Hyperbola Foci
The video tutorial examines the proof of the hyperbola foci formula. The resource consists of the detailed proof.
Khan Academy
Khan Academy: Algebra: Foci of a Hyperbola
The video tutorial examines the hyperbola. Students learn how to calculate the foci of a hyperbola. The resource consists of examples with detailed explanations. [15:24]
Khan Academy
Khan Academy: Algebra: Foci of an Ellipse
The video tutorial examines the ellipse. Students learn how to calculate the foci of an ellipse. The resource consists of examples with detailed explanations. [13:49]