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August 2, 2015

Homework Help: Geometry

Posted by Kasey on Wednesday, June 14, 2006 at 3:36pm.

How do I find the distance between (-9,3) and (-1,-5)


By using the Pythagorean theorem. The line between the two points is the hypotenuse of a triangle with perpendicular side lengths of 8 in the x direction and 8 in the y direction. The 8's come from the differences in x and y coordinates of the two points.

Plotting the points on a graph should be helpful to you for visualizing what is going on.

So Distance = sqrt[(8)^2 + (8)^2]
That can be reduced to 8 sqrt 2

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