Ready to master ellipses? 🚀 This complete guide to ellipses covers everything you need to know, from understanding their definition and key components to graphing, writing equations, finding eccentricity, and even tackling completing the square! Mario's Math Tutoring breaks down the concept of an ellipse as the set of all points where the sum of distances to two foci is constant. You'll learn about the major axis (2a), minor axis (2b), and the distance to the foci (c), all related by the formula c² = a² - b². In this video, you'll discover: Key Terminology: Vertices, co-vertices, foci, center, major axis, and minor axis. Graphing Ellipses: Step-by-step instructions on how to graph ellipses from their standard equation, identifying the center, vertices, and co-vertices. Writing Equations: How to write the standard equation of an ellipse when given vertices, foci, or other key information. Eccentricity: What eccentricity means (e = c/a) and how it describes the "roundness" or "stretch" of an ellipse (always between 0 and 1). Completing the Square: A detailed example of how to transform a general equation into the standard form of an ellipse by completing the square, then graph it. Follow along through 5 comprehensive examples, designed to build your understanding step-by-step. By the end, you'll be an ellipse expert! #Ellipses #ConicSections #GraphingEllipses #EquationOfAnEllipse #Eccentricity #CompletingTheSquare #MathTutorial #PreCalculus #Algebra2 #MathHelp #MarioMathTutoring Timestamps: 0:00 Introduction to Ellipses 0:15 What is an Ellipse? (Definition & Foci) 0:50 Key Components: Major Axis (2a), Minor Axis (2b), Foci (c) 1:10 Relationship: c² = a² - b² 1:40 Example 1: Graphing an Ellipse from Standard Form (Center at Origin) 3:40 Calculating Eccentricity (e = c/a) 4:45 Example 2: Graphing an Ellipse with a Shifted Center (Vertical Major Axis) 8:10 Example 3: Writing the Equation of an Ellipse (Given Vertices & Foci) 12:45 Example 4: Writing the Equation of an Ellipse (Given Foci & Minor Axis) 17:00 Example 5: Completing the Square to Graph an Ellipse * Organized List of My Video Lessons to Help You Raise Your Scores & Pass Your Class. Videos Arranged by Math Subject as well as by Chapter/Topic. (Bookmark the Link Below) ➡️JOIN the channel as a CHANNEL MEMBER at the "ADDITIONAL VIDEOS" level to get access to my math video courses(Algebra 1, Algebra 2/College Algebra, Geometry, and PreCalculus), midterm & final exam reviews, ACT and SAT prep videos and more! (Over 390+ videos)