Virtual Nerd: How Do You Find the Determinant of a 2x2 Matrix?

Review for your SAT by brushing up on Venn diagrams. Watch this video on how to find the union and intersection of sets. [1:58]

Review for the SAT by reviewing how to figure out if the values in a replacement set are part of a solution set to an inequality. Watch this video for an example. [2:03]

Go back to the basics and review how to find the square root of a perfect square. This video will walk you through the process and provide examples. [1:59]

Watch how to simplify an expression using the quotient of powers rule. This tutorial will explain the process and show examples. [2:58]

Review how to use the product of powers rule to simplify an expression. This tutorial will walk you through the process and show you examples. [3:22]

How do you simplify expressions that have negative exponents? This video will walk you through the process and provide examples. [3:39]

The sine ratio is not only used to identify a ratio between two sides of a right triangle, but it can also be used to find a missing side length. This tutorial shows you how to use the sine ratio to find that missing measurement. [4:29]

Two polynomials are additive inverses if they are opposites of each other. This tutorial shows how to find the additive inverse of a given polynomial. [3:43]

Tutorial illustrates how to find the slope of a line by first identifying two points on a graphed line then using these points to calculate the slope. [3:03]

Watch this tutorial and learn how to find the domain and range of a relation. [2:09]