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...
Why U
Algebra 77 - The quadratic formula
Before the method of completing the square was developed, only very limited types of quadratic equations could be solved. This method eliminated those limitations, allowing the solutions of any quadratic equation to be found. As...
Curated Video
Graphing Cube Root Functions Using Transformations
In this video, the teacher explains how to graph cube root functions by using transformations. They review inverse functions and how they reflect over the line y = x. They also discuss the domain and range of cube root functions and...
Curated Video
Adding Positive and Negative Numbers Using a Number Line
Review examples to understand how to move on the number line to find the sum. This video also introduces the commutative property and shows how it applies to addition with positive and negative numbers.
Curated Video
Locating Rational Numbers on a Number Line
In this video, students learn how to position a group of numbers that include decimals, fractions, and integers on a number line. They review how to order decimal numbers from least to greatest and how to change decimals to fractions and...
Brian McLogan
How to subtract two vectors with scalars
Learn how to determine the resultant vector by adding, subtracting and multiplying vectors by a scalar. We will also learn how to graph the resultant vectors to show the operations. Vectors can be added, subtracted and multiplied. To add...
Curated Video
Adding Positive and Negative Integers Using a Number Line
This video explains the concept of integers and addition, and demonstrates how to graphically represent the addition of positive and negative numbers on a number line. Through clear examples and step-by-step instructions, students will...
Curated Video
Positive and Negative Numbers Above and Below Sea Level
In this lesson, students will learn how positive and negative numbers are used to measure elevation above and below sea level. They will understand that sea level represents 0 elevation, and that both positive and negative elevations...
Curated Video
Subtracting Integers Using the Take Away Definition on a Number Line
In this video, students will learn how to subtract integers by using the take away definition of subtraction on a number line. The video explains what integers are, what subtraction is, and how to interpret subtraction as taking away or...
Brian McLogan
How to subtract two vectors by adding
Learn how to add/subtract vectors. Vectors can be added, subtracted and multiplied. To add or subtract two or more vectors, we simply add each of the corresponding components of the vectors.
Curated Video
Restricting the Domain to Create Functions
This video explains the concept of putting restrictions on the domain of a function in order to make it well-defined. They give examples of functions and demonstrate how to determine the values that cause the function to be undefined. By...
Curated Video
Comparing Numbers Using a Number Line in Real World Situations
In this video, the teacher explains how to compare positive and negative numbers in real-world situations using a number line. The examples given involve debts and amounts of money owed by different individuals. The teacher emphasizes...
Brian McLogan
How to find the domain of a radical function
👉 Learn how to find the domain of a radical function. Recall that the domain of a function is the set of possible input values (x-values) of the function. For a radical square-root function, there cannot be a negative number inside the...
Brian McLogan
Subtracting real numbers a positive from a negative, 3 - 4
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Brian McLogan
Basic Math - Adding and subtracting basic numbers
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Brian McLogan
Determining the domain and range from a graph by completing the square to graph
👉 Learn how to graph quadratics in standard form. A quadratic equation is an equation whose highest exponent in the variable(s) is 2. To graph a quadratic equation, we make use of a table of values and the fact that the graph of a...
Brian McLogan
Learn how to graph a system of two linear inequalities when the slope is 1
👉 Learn how to graph a system of inequalities. A system of inequalities is a set of inequalities which are collectively satisfied by a certain range of values for the variables. To graph a system of inequalities, each inequality making...
KnowMo
Types of Numbers: Odd and Even, Positive and Negative, Integers and Non-Integers
This video is a lecture presentation on types of numbers. The presenter explains the different kinds of numbers such as odd and even numbers, positive and negative numbers, integers and non-integers. The video includes visual aids and...
Brian McLogan
Adding real numbers a positive to a negative, 5 + (-7)
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Brian McLogan
What you need to know | Functions
In this video I walk through some of the basic problems that you will want to know and remember BEFORE entering pre-calculus. "Most" pre-calculus classes start with a chapter or section on functions and while this video does not cover...
Brian McLogan
Adding real numbers positive to a negative, -3 + 2
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Brian McLogan
Subtracting real numbers a negative from a positive, 11 - (-2)
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Brian McLogan
Adding real numbers negative to a negative, -7 + (-5)
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...