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## How Do You Solve Linear Systems Using Matrix Algebra?

One of the most common applications of square matrices is to solve systems of linear equations. Solving linear systems using matrix algebra is more efficient than hand calculating the systems using substitution methods; this is especially true when dealing with systems of 3 or more variables. Two matrix algebra methods include: row reducing and finding the inverse.

## How Do You Simplify Radical Expressions?

When simplifying square roots, we give the positive and negative answer if solving an equation that did not originally have a square root. Knowledge of math radicals is important when solving quadratic equation problems.

## How Do You Solve Equations with Variables on Both Sides?

There are many methods we use to solve for the variable when it appears in more than one place. You need to know how to combine like terms, as well as the skills needed to solved multi-step equations.

## How Do You Factor Trinomials?

Factoring trinomials is easiest when the leading coefficient (the coefficient on the squared term) is one.

## How Do You Simplify Complex Fractions?

When you simplifying complex fractions, factor the numerator and denominator into terms multiplying each other and look for equivalents of one (something divided by itself). Include parenthesis around any expression with a “+” or “-” and if all terms cancel in the numerator, there is still a one (1) there.

## What Is An Augmented Matrix?

To solve a system of linear equations, we can use substitution, elimination or something we call augmented matrices.

## How Do You Complete the Square?

Solving quadratics can be difficult. Completing the square is one method for solving a quadratic equation.

## What Are Variables?

Variables are used throughout Algebra, Geometry, and Calculus. Variables are therefore very important to understand.

## How Do You Graph Lines Using a Table of Values?

We often use a table of values to plot and connect points when we are graphing a line. Sometimes graphing lines using an equation involves the same methods as using a table of values.

## How Do You Solve Linear Equations?

Equations are fundamental to Algebra, and solving linear equations is necessary for you to learn how to solve two-step equations, and other multi-step equations.

## What Are Natural and Common Logarithms?

The common logarithm has base 10, and is represented on the calculator as log(x). The natural logarithm has base e, a famous irrational number, and is represented on the calculator by ln(x). The natural and common logarithm can be found throughout Algebra and Calculus.

## What Are Periodic Trigonometric Functions?

Periodic Functions: Sine and cosine are periodic functions, which means that sine and cosine graphs repeat themselves in patterns. You can graph sine and cosine functions by understanding their period and amplitude.

## Probability, Introduction to Statistics

It can be convenient to calculate the likelihood of an event, and in many cases we can use statistical probability.

## How Do You Graph Rational Functions?

Rational Function Graphs: There are different characteristics to look for when creating rational function graphs….

## What are Sequences?

This is an introduction to sequences. Lists of numbers, finite and infinite, that follow certain rules are called sequences.

## How Do You Translate A Graphed Rational Function?

Are you lost in translation when it comes to translating a graphed object? This free video lesson will explain it in simple terms and make translations into child’s play.

## How Do You Factor Quadratic Equations?

To solve a quadratic equation by factoring, you set one side of the equation equal to zero and use the zero product property to factor the equation.

## What Are Percentages?

A percentage is a special ratio in which the second term of the ratio is always 100. By expressing a number as a percentage you are reflecting how many times it occurs in relation to 100 times.