Distance Formula between 2 Pts Part 1

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
8468 views | 1 rating
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Lesson Summary:

In this lesson, we learn how to find the distance between two points in a plane by using the Pythagorean theorem to create a right triangle. We also learn how to derive the distance formula by subtracting the x and y coordinates of the two points and squaring them, then taking the square root of the sum of the squares. The order in which we subtract the coordinates does not matter as long as we square them. We are also shown how to simplify the formula and use it to find the distance between two points given their coordinates.

Lesson Description:

Shows how to use pythagorean theorem to derive the distance formula between 2 points, and provides one example.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • What is the distance formula?
  • How do you find the distance between two points?
  • What is the distance between (-3, 5) and (6, -2)?
  • Where does the distance formula come from?
  • How do you derive the distance formula using the Pythagorean Theorem?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson explains what the distance formula is and how to find the distance between two points in a plane. You will not just learn how to use the distance formula, you will learn where the distance formula comes from and how to derive the distance formula using the Pythagorean Theorem.