Use the power of algebra to understand and interpret points and lines (something we typically do in geometry). Topics you'll explore include the slope and the equation of a line.

Practice Horizontal & vertical lines Get 5 of 7 questions to level up! Practice Not started

Learn how to graph lines whose equations are given in the slope-intercept form y=mx+b.

Want to learn more about graphing equation from slope-intercept form? Check out this video.

This powerful concept blends numerical precision with graphical clarity, illuminating the behavior of the line on the graph in a way that is both straightforward and captivating!

Learn how to create a graph of the linear equation y = 2x + 7. Created by Sal Khan and CK-12 Foundation.

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).

The slopes of parallel lines are equal, and the slopes of perpendicular lines are opposite reciprocals. This is a worked example of determining whether given lines are parallel or …

A line graph is way to visually represent data, especially data that changes over time. Let's take a look at an example.

To plot an inequality, such as x>3, on a number line, first draw a circle over the number (e.g., 3). Then if the sign includes equal to (≥ or ≤), fill in the circle.