Find out how time and space switch roles when we move beyond the event horizon of the black hole.

Mr. Andersen explains the basics of balancing chemical equations. A visual guide shows you how to change coefficients to balance the atoms in reactants and products.

Representing the regular speed graphically

In this video, you will learn how to write a system of equations to solve story problems with multiple unknowns. The goal is to find the solutions that satisfy each equation in the system. You will also explore different methods to solve...

In this lesson, students will learn how to identify systems of equations with no solutions. They will understand that a system of equations is when two or more equations have the same variables and values. Through graphical and algebraic...

In this lesson, students learn how to solve quadratic equations by inspection. They review perfect squares and multiplying square roots, as well as common mistakes to avoid. Through examples, they learn to identify perfect square...

Video Atlas of Asia: This clip looks at the physical features, climate and culture of Philippines.

👉 Learn how to find and write the equation of the tangent line of a curve at a given point. The tangent of a curve at a point is a line that touches the circumference of the curve at that point. To find the equation of the tangent line...

Learn System of Linear Equations in two Variables by Graphical Method which forms Coincident Lines (Problem Solving)

Fick's First Law (1): Diffusion, Flux, and Concentration Gradients

Solutions to Problem 2.

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...

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.

In this lesson, students will learn how to find the maximum area of a rectangular enclosure given a fixed length of fencing. By using tables of values and substituting expressions, they will be able to identify the dimensions that yield...

The video is a tutorial on representing inequalities graphically. The presenter starts by recapping some basic information such as the symbols used and how to represent inequalities on a number line. Then, they explain how to establish...

👉 Learn all about the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of...

The video discusses how to use graphs to find solutions for systems of equations, both linear and quadratic. The speaker explains how to plot the equations onto graph paper and identify the point of intersection as the solution. They...

👉 Learn how to determine if a function is even or odd. A function is even if the graph of the function is symmetrical about the y-axis, or a function is even if f(x) = f(-x). A function is odd if the graph of the function is symmetrical...

The video is a lecture on the process of trial and improvement in solving equations, particularly for equations that are more difficult than quadratic equations. The video provides an example of a cubic equation and explains how trial...

The video is a presentation on how to interpret solutions graphically using examples of linear and quadratic equations on graphs. The presenter explains how to find the point where two graphs meet, which solves the equation. They also...

👉 Learn how to determine if a function is even or odd. A function is even if the graph of the function is symmetrical about the y-axis, or a function is even if f(x) = f(-x). A function is odd if the graph of the function is symmetrical...

👉Learn about solving a system of equations by graphing. A system of equations is a set of more than one equations which are to be solved simultaneously. To solve a system of equations graphically, we graph the individual equations making...

👉 Learn how to find the inverse of a rational function. A rational function is a function that has an expression in the numerator and the denominator of the function. The inverse of a function is a function that reverses the "effect" of...

👉 Learn how to determine co-terminal angles given one angle. An angle is a figure formed by two rays that have a common endpoint. The two rays are called the sides of the angle while the common endpoint is called the vertex of the angle....