In this video, we define the discriminant and see how we can use it to determine the number of solutions to a quadratic equation.

In this video, we examine two quadratics word problems. In the first, we do a problem involving the radius of a sprinkler in a square yard. In the second problem (2:40), we find two consecutive odd numbers that have a particular product.

This video is a basic video on using the distance formula when given two points.

You can use a formula (equation) or a proportion to find sector area. This video shows to to do both strategies. The final example has you "work backwards" where you are given the sector area and you have to solve for the radius.

In this video, we find composite functions and the domain of those composite functions

In this video, we work some problems that have more than one type of variation.

In this video, we investigate how changing the linear dimensions of a three dimensional solid affects the volume and surface area. Specifically, how do we solve for missing values (like side length, volume and surface area) when we are...

In this video we learn how to find missing side lengths using the geometric mean. This video doesn't go into depth about WHY these relationships exist, this is more of just the "how" to use them. This video also does not explain all of...

In this video, we investigate how to find trig ratios when given other ratios. First, we define all six trig ratios, then we examine for which quadrant each angle is positive and negative. Then, we work two examples.

How do you plot points in the complex plane? How do you find modulus of a complex number? This video answers these questions by graphing points on the complex plane, defining modulus (absolute value), and calculating modulus.

How do you find magnitude and direction of a vector? How do you write a vector in component form? This video will discuss how to find all of the above. We define vector, component form, magnitude, direction, standard position, and...

How do you use the Law of Cosines to find sides (SAS) and find angles (SSS)? In this video, we use the Law of Cosines to find missing sides and angles in oblique triangles.

How to simplify when you add, subtract, or multiply radical expressions

This video discusses how to simplify radical expressions involving fractions and/or division

Find all six trig ratios given a point on the terminal side of theta. In this video we work this common type of problem. We use the Pythagorean Theorem to find "r" (hypotenuse), and then use the given "x" (adjacent) and "y" (opposite) to...

In this video, we investigate how and why geometric mean can be used to find missing side lengths in certain triangles.

This video shows students how to complete the square with any leading coefficient.

How do fractional exponents work? In this video, we learn how to rewrite fractional (rational) exponents as radicals. When the exponent is a fraction, it is simple to rewrite as a radical and simplify. We do several examples including...

In this video, we discuss how to simplify expressions with rational exponents. When your exponent is a fraction, how can you rewrite it with a radical? When you have a radical, how can you rewrite that as an exponent?

Algebra 1 STAAR/EOC released test questions. These are practice problems meant to help you review and practice as you prepare for your STAAR test / EOC test for Algebra 1 (Texas). Readiness standard A10E - factor, if possible, trinomials...

Welcome to our complete high school mathematics tutorial series! Whether you’re a student preparing for exams, a teacher seeking additional resources, or a parent helping your child succeed in math, these videos cover a wide range of...

Welcome to our comprehensive series of Advanced High School Mathematics Tutorials! This series is perfect for students, teachers, and anyone looking to deepen their understanding of higher-level mathematics. Each video breaks down...

Welcome to our comprehensive series of Advanced High School Mathematics Tutorials! This series is perfect for students, teachers, and anyone looking to deepen their understanding of higher-level mathematics. Each video breaks down...

Welcome to our comprehensive series of Advanced High School Mathematics Tutorials! This series is perfect for students, teachers, and anyone looking to deepen their understanding of higher-level mathematics. Each video breaks down...