The distance formula is used to find the length of a segment. On the coordinate plane it can be used to find how far apart two points are. In this topic, you will be able to use the distance formula to find the length between two points.

Essential Question

• How can you use the distance formula to determine the length of a segment?

 

Warm-Up

To find the distance between two points on a number line, you may choose to use one of the following techniques:

• Find the absolute value of the difference of the coordinates of the points
• Count the distance between the two points

In this non-graded interactivity, warm-up your skills by finding the distance between two points by answering the following questions. Click the player button to get started.