Brian McLogan
Finding the standard form of a parabola given vertex and focus
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...
Curated Video
Rotations about a Vertex
In this short video we will learn how to rotate a figure about a vertex in the coordinate plane. We will learn that the center of rotation is about a fixed point, a vertex, rather than the origin of the coordinate plane. The vertex that...
Brian McLogan
Completing the square and finding the x intercepts
In this math tutorial I will show you how to sketch a quadratic function, find the axis of symmetry, determine the y-intercepts and find the zeros or x-intercepts. To find the x-intercepts we use such methods as setting the equation...
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...
Curated Video
Graphing Quadratic Functions in Standard Form
This video lesson introduces/reviews how to graph a quadratic function in standard form.
Brian McLogan
Converting between quadratic and vertex form by completing the square
👉 Learn how to write a quadratic equation from standard form to vertex form by completing the square. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. It is of the form f(x) = ax^2 + bx + c. Given a...
Math Fortress
Geometry: Introduction to Geometry (Level 4 of 7)
This video continues introducing the basic building blocks for the successful study of geometry. This video goes over 3 slightly more challenging examples covering the appropriate way to denote and name angles formed by points on a...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Transformation - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Brian McLogan
Graph a quadratic by completing the square by factoring out a negative 1
👉 Learn how to graph quadratic equations by completeing the square. A quadratic equation is an equation of the form y = ax^2 + bx + c, where a, b and c are constants. The graph of a quadratic equation is in the shape of a parabola which...
Curated Video
Slicing 3D Figures
In this video, we learn how to slice a square pyramid perpendicular to its base through Vertex V and identify the resulting two-dimensional figure. By using a knife to slice the pyramid in half, we end up with a triangle.
Brian McLogan
Completing the square in three examples
👉 Learn how to complete the square to solve a quadratic equation. Completing the square is allows us to create a binomial squared so that we can solve using the square root method. Solving by completing the square is preferred when a...
Curated Video
Proving Why the Angles of a Triangle Have a Sum of 180 Degrees
In this video, students are guided through a hands-on activity to prove why the angles of a triangle always add up to 180 degrees. By drawing and cutting out a triangle, labeling the angles, and connecting them together, students can...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Transformation - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
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)....
Curated Video
How to Measure Using a Protractor- Doodles and Digits
Do your fourth-grade math students need to learn how to measure an angle using a protractor? This educational kids math video shows upper elementary math students how to use a protractor! This educational geometry video is a great...
Brian McLogan
Learn how to complete the square to solve a quadratic
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
What are the different types of inscribed angles
Learn the essential definitions of the parts of a circle. A secant line to a circle is a line that crosses exactly two points on the circle while a tangent line to a circle is a line that touches exactly one point on the circle. A chord...
Brian McLogan
Learn how to graph an absolute value equation by identifying the vertex first
👉 Learn about graphing absolute value equations. An absolute value equation is an equation having the absolute value sign and the value of the equation is always positive. The graph of the parent function of an absolute value equation is...
Curated Video
Finding the Maximum or Minimum Value of a Quadratic Function by Completing the Square
In this video, the teacher explains how to find the maximum or minimum value of a quadratic function by completing the square and writing the function in vertex form. They provide examples and demonstrate how to determine the least value...
Brian McLogan
Identify the parts and graph a parabola
👉 Learn about the parts of a parabola. A parabola is the shape of the graph of a quadratic equation. A regular palabola is the parabola that is facing either up or down while an irregular parabola faces left or right. A quadratic...
Curated Video
Understanding Three-Dimensional Figures
In this video, the teacher explains the terms used to describe three-dimensional figures. They discuss the difference between one-dimensional, two-dimensional, and three-dimensional figures, and provide examples of each. The teacher also...
Curated Video
Graphing and Solving Problems on a Coordinate Plane
Learn how to graph points on a coordinate plane and solve mathematical problems using the graph. We demonstrate how to determine if points are on the same line and how to find the fourth vertex of a rectangle using opposite coordinates....
Brian McLogan
What is an angle in standard form?
👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...
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...