Curated Video
Orders of Magnitude in Biology: A Convenient Way to Express Small and Large Numbers.
This video is a lecture presentation on the use of orders of magnitude in biology. The presenter explains how to express very small numbers and very large numbers conveniently, making it easier to use those numbers in calculations. The...
Brian McLogan
How to solve a system of equations by graphing
👉To solve a system of equations means to obtain a common x-value and a common y-value that makes the each of the equation in the system true. To solve a system of equations by graphing means to obtain the point of intersection (if any)...
Brian McLogan
Graph an ellipse by completing the square to write in standard form
Learn how to graph horizontal ellipse which equation is in general form. A horizontal ellipse is an ellipse which major axis is horizontal. When the equation of an ellipse is written in the general form, we first rewrite it in standard...
Curated Video
Graphing Quadratic Functions in Intercept Form
This lesson will explain how to graph a quadratic function in intercept form. You will learn how to find the axis of symmetry given the intercepts and how to find the value of a to write a function.
Brian McLogan
Determining the leading coefficient and degree of a polynomial
👉 Learn how to find the degree and the leading coefficient of a polynomial expression. The degree of a polynomial expression is the the highest power (exponent) of the individual terms that make up the polynomial. For terms with more...
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...
Brian McLogan
Equations in standard form
👉 Learn how to write the equation of a line given points, slopes and intercepts. We will work on writing the equation of a line in slope intercept form and standard form as well as writing the equation of a line parallela and...
Brian McLogan
Graph a linear equation by first rewriting it from standard form to slope intercept form
👉 Learn how to graph linear equations written in standard form. When given a linear equation in standard form, to graph the equation, we first rewrite the linear equation in slope intercept form, (i.e. in the form y = mx + c, where m is...
Curated Video
Using the Quadratic Formula
This lesson will review and provide practice on how to use the quadratic formula. Learn to develop good habits using the formula and what different outcomes mean to the solution.
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
Sketch the Angle in Standard Position
👉 Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
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...
Curated Video
Using Orders of Magnitude in Physics Calculations
The video is a lecture presentation on the use of orders of magnitude in physics. It defines orders of magnitude as comparing numbers or values in terms of powers of 10 and explains how to use decimal prefixes for expressing very small...
Curated Video
Graphing Quadratic Functions in Standard Form
This video lesson introduces/reviews how to graph a quadratic function in standard form.
Brian McLogan
Finding the x and y intercept from a linear equation 5 - y = -3x
👉 In this playlist you will learn how to graph a linear equation in standard form, slope intercept form as well as when the slope and y intercept are provided. In addition to graphing linear equations we will also learn how to determine...
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...
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...
Brian McLogan
How to identify Degree and Leading Coefficient of a polynomial
👉 Learn how to find the degree and the leading coefficient of a polynomial expression. The degree of a polynomial expression is the the highest power (exponent) of the individual terms that make up the polynomial. For terms with more...
Brian McLogan
Completing the square
👉 Learn how to identify the vertex of a parabola by completing the square. A parabola is the shape of the graph of a quadratic equation. A quadratic equation can be written in the standard form (i.e. in the form y = ax^2 + bx + c) or it...
Brian McLogan
Solving a quadratic by completing the square
👉 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
Completing the square by factoring out a negative one
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
Pre-Calculus - Overview of complex numbers- Online Math Tutor
In this math tutorial I will show you how write a complex number in standard form after simple operations have been performed. You will learn how to find the value of real and imaginary numbers in a complex number and then write it in...
Why U
Algebra 42 - Visualizing Linear Equations in Three Variables
Just as the graph of a linear equation in two variables is a line in the Cartesian plane, the graph of a linear equation in three variables is a plane in Cartesian space.
KnowMo
How to Solve Standard Form Problems in Maths
This video provides a tutorial on solving standard form problems in mathematics. The instructor explains the key steps involved in deciphering word problems, highlighting important terms, and carrying out operations such as addition,...