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The Distance Formula

The Distance Formula. Used to find the distance between 2 points (or the length of segment between the 2 points): A( x 1 , y 1 ) and B(x 2 , y 2 ) You also could just plot the points and use the Pythagorean Theorem!!.

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The Distance Formula

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  1. The Distance Formula • Used to find the distance between 2 points (or the length of segment between the 2 points): A( x1, y1) and B(x2, y2) You also could just plot the points and use the Pythagorean Theorem!!

  2. Find the distance between the two points. Round your answer to the nearest tenth. • T(5, 2) and R(-4, -1)

  3. Graph the 2 points on the coordinate plane. Then find the length of segment AB. A( -2, -3) and B(1, 3)

  4. Why are these pairs of points different?? • (2, 5) and (2, 9) • (-4, 7) and ( 3, 7)

  5. Midpoint Formula • Find the midpoint coordinates between 2 points • Find by averaging the x-coordinates and the y-coordinates of the endpoints (x2, y2) (x1, y1)

  6. Use the following segment to answer the questions: What is the length of the segment? What are the coordinates of the midpoint?

  7. Is R the midpoint of QT? Justify your answer.

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