Learn what variables, expressions, and equations are.

## With Bill Witte

One-Step, Two-Step and Multi-Step equation solving examples for basic algebra.

To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=2x+3 tells us that the slope of the line is 2 and the y-intercept is at (0,3). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.

The rate of change is a rate that describes how one quantity changes in relation to another quantity. In this tutorial, practice finding the rate of change using a graph.

Graphing horizontal and vertical lines in the x-y plane.

Graphing a function? It would be really helpful if you had a table of values that fit your equation. You could plot those values on a coordinate plane and connect the point to make your graph. See it all in this tutorial!

 After completing this tutorial, you should be able to:1) Recognize when an equation in two variables is a linear equation.2) Graph a linear equation.

This example shows the steps and clarifies the purpose of order of operations: to have ONE way to interpret a mathematical statement.

Simple exponential expressions with numbers only and order of operations for algebraic expressions.

Multiplying and dividing positive and negative numbers.