Virtual Nerd: What Are Vertical Lines?

Using the vertical line test, you can figure out if a graph is a function or not. Watch this tutorial to learn about the test. [3:30]

Is the graph of the equation a function? Use the vertical line test to answer this question. The definition states that the vertical line can pass through the graph of the line no more than one time. The teacher demonstrates exactly what...

What does the graph of a vertical line look like? Well, it is a line that is straight up and down. What does the equation of a vertical line look like? So what kind of slope does a vertical line represent? Does the equation of a vertical...

A line plot is an effective way to visualize data. Watch this video for an explanation of line plots along with examples. [4:44]

Vertical angles are always congruent to one another. Take a look at this tutorial to learn about and see how to identify vertical angles. [4:07]

Lines that are parallel have a very special quality. This tutorial takes a look at parallel lines and how they are different from other types of lines. [4:06]

The angles formed by perpendicular lines will always be the same. Take a look at this tutorial to learn about perpendicular lines and see a special trick involving them. [5:22]

This video tutorial introduces skew lines which are two lines that do not intersect and are not parallel. [3:46]

Gain information about horizontal lines including their slope and what the equation of a horizontal line looks like. [3:44]

A line graph is one of many ways we can visually represent data. Watch this tutorial for examples. [4:05]