Linear Sentences in One Variable
Segments, Lines, and Inequalities
Numerically, the midpoint of a segment can be considered to be the average of its endpoints. This concept helps in remembering a formula for finding the midpoint of a segment, given the coordinates of its endpoints. Recall that the average of two numbers is found by dividing their sum by two.
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Example 1: In Figure
1 ,
R is the midpoint between
Q(−9,−1) and
T(−3,7). Find its coordinates.
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By the midpoint formula,
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