Distance Formula

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Examples, videos, worksheets, and solutions to help Grade 8 students learn the distance formula that uses the Pythagorean Theorem.

What is the Distance Formula?
The distance between two points (x1, y1) and (x2, y2) is given by the formula:

$$D = \sqrt {{{\left( {{x_2} - {x_1}} \right)}^2} + {{\left( {{y_2} - {y_1}} \right)}^2}}$$

How the distance formula comes from the Pythagorean Theorem? Example of finding the distance between two points.

Distance Formula Between Two Points
How to find the distance on a line using the distance formula?
Brief explanation of distance formula and an example

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