The distance formula

Length of a segment between two points, derived from the Pythagorean theorem.

Standards:8.G.B.8G-GPE.B.7

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

Find the distance between points A(−2, 3) and B(4, −5).

Question 2 of 3

A hiker starts at point A (2, 3) and walks to point B (8, 11). How far did the hiker walk?

Question 3 of 3

Points A(−2, 3) and B(4, −5) are plotted on a coordinate plane. Find the distance between them.

How this fits in

The distance formula is one skill in the Coordinate Geometry unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

Practice the distance formula until it sticks

Unlimited fresh questions, hands-on problem types, a tutor while you work, and a review schedule that keeps it learned. Free, no credit card.

Start practicing free