CPM Homework Help : CC3MN Problem 9-115

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Home > CC3MN > Chapter 9 > Lesson 9.2.2 > Problem 9-115

9-115.

Each part below gives the endpoints of a segment. Find the coordinates of the midpoint of the segment. Hint: Try graphing the points.

$(5, 2)$ and $(11, 14)$
Step 1(a):
Average the $x$ -coordinates.
$x = \frac{5 + 11}{2} = 8$
Step 2(a):
Average the $y$ -coordinates.
$y = \frac{2 + 14}{2} = 8$
Answer (a):
The midpoint is at $(8,8)$ .

$(3, 8)$ and $(10, 4)$
Hint (b):
Follow the same procedures to find the midpoints of the other segment.

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