Distance Formula

Definition

The distance d between the points (x1, y1) and
(x 2, y2) is given by,

Distance Formula

 

Example Problem

Given the points ( 1, -2 ) and ( -3, 5 ), find the distance between them.

Solution

Label the points as follows
( x1, y1 ) = ( -1, -2 ) and ( x2, y2 ) = ( -3, 5 ).
Therefore, x1 = -1, y1 = -2, x2 = -3, and y2 = 5.

To find the distance d between the points, use the distance formula :

Example Solution

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