Why U
Algebra 85 - Building Polynomial Functions
Because of the tremendous variety of shapes of their graphs, polynomial functions are important tools for modeling phenomena in a wide range of fields such as science, engineering, medicine and finance. But since polynomial functions are...
Why U
Algebra 93 - Rational Functions and Nonvertical Asymptotes
Although a rational function may have any number of vertical asymptotes or no vertical asymptotes, rational functions will always have exactly one non-vertical asymptote. Since a function's value is undefined at a vertical asymptote, its...
Why U
Algebra 91 - Rational Functions and Vertical Asymptotes
A rational function is any function that can be written as a fraction whose numerator and denominator are polynomials. Rational functions include a broad range of possibilities. For example, since a polynomial can be a constant, a...
Why U
Algebra 88 - Adding and Subtracting Polynomial Functions
Adding polynomial functions produces another polynomial function. The values of this function are the sum of the values of the polynomials that were added for every possible value of the input variable(s). Fortunately, adding polynomial...
Why U
Algebra 86 - Graphing Polynomial Functions - Part 1
Calculators and graphing utilities are available that are capable of creating accurate graphs of polynomial functions. However, it is often desirable to sketch a quick representation of a function's graph to get a general idea of its...
Curated Video
Area of Oblique Triangles
A video entitled “Area of Oblique Triangles” which models how to calculate the areas of oblique triangles.
Curated Video
Substituting Values for Variables
Evaluate algebraic expressions by substituting a value for the variable in an expression.
Curated Video
Factor Polynomials
A video entitled “Factor Polynomials” which models how to factor quadratic equations.
Curated Video
Domain and Range
“Domain and Range” explains when a relation is a function. The video also describes how to determine the domain and range of a given function.
Curated Video
Solve for Missing Values in Ratio Problems Using Multiplicative Reasoning
Solve for Missing Values in Ratio Problems Using Multiplicative Reasoning solves for the missing values in ratio problems by using multiplicative reasoning.
Curated Video
Recognize that Absolute Value is Always Positive by Adding Two Negative Numbers
Recognize that Absolute Value is Always Positive by Adding Two Negative Numbers recognizes that the absolute value of a number is always positive by adding two negative numbers.
Curated Video
Friends Part 2
Part 2 focuses on qualities to look for in friends, emphasizing shared values, belief in and encouragement of one another, honesty, and trustworthiness. The team stresses the importance of having friends who support personal growth and...
Nature League
What Is Nature League?
This week on Nature League, Brit discusses what a Nature League actually is and how to create a happy and healthy relationship with topics in the Anthropocene.
Curated Video
Mathematics: Finding Values on Opposite Sides of 0 on the Number Line
In this video, the teacher explains how to identify which pairs of numbers are on opposite sides of 0 on a number line. They walk through four pairs of values and show how to plot them on the number line to determine which pair is on...
Curated Video
Proportional Relationship with a Table and an Equation
In this math video we will solve a two part question about a proportional relationship with a table and an equation. We will begin by understanding the table and finding the unit rate. We will find the change in each column as we...
Hip Hughes History
What is a Conservative?
A summary of the Conservative ideology with a emphasis on the difference between social & economic views.
Curated Video
The Pythagorean Theorem and the Coordinate Plane
In this video, the teacher explains how to use the Pythagorean theorem in the coordinate plane to find the length of a segment. They walk through the steps of identifying the right triangle, finding the values of the legs, plugging them...
Vlogbrothers
Who Owns DFTBA? An Introduction to Trademarks
In which John discusses the increasingly widespread use by large corporations of the phrases "DFTBA" and "Don't forget to be awesome," and discusses why even though we COULD stop those uses by trademarking nerdfighter slogans, we aren't...
Vlogbrothers
Doing Bad Things To Make Good Things Happen
I am very lucky to have found myself (and gotten myself) in a situation that is well suited to the quirks of my personality. But I still find myself sometimes unintentionally hurting people, annoying people, or letting people down even...
Flipping Physics
Equipotential Surfaces
The electric potential difference in a uniform electric field is derived and used to show lines of equal electric potential or equipotential lines. Equipotential lines and surfaces of point charges and dipoles are shown. The equation for...
Curated Video
Introduction to IT and Cybersecurity: Application Security Controls
Part 15/16 of Introduction to IT and Cybersecurity series: This video provides an overview of security controls that are implemented in applications. The speaker explains the three types of controls: input controls, processing controls,...
Curated Video
Risk Analysis
Risk analysis is the process of identifying and analyzing potential issues that could negatively impact key business initiatives or projects. This process is done in order to help organizations avoid or mitigate those risks.
Curated Video
Power Electronics Problem Set 1a
Basics of power electronics - Walid Issa Power Electronics Problem Set 1a
Curated Video
08 Waveform computations in Power Electronics
08 Signals computations in Power Electronics Walid Issa