CPM Homework Help : GC Problem 7-119

Each problem below gives the endpoints of a segment. Find the coordinates of the midpoint of the segment. If you need help, consult the Math Notes box for this lesson.

$(5,2)$ 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 segments.

$(-3,11)$ and $(5,6)$
Hint (c):
Follow the same procedures to find the midpoints of the other segments.

$(-4,-1)$ and $(8,9)$
Hint (d):
Follow the same procedures to find the midpoints of the other segments.