Answer:
(11, -1)
Step-by-step explanation:
We get the midpoint by "averaging" the x-coordinates and y-coordinates.
One endpoint is (3,2) and let the other end point be (x,y). Thus, we can say:
Let's do the math:
[tex]\frac{3+x}{2}=7\\3+x=7*2\\3+x=14\\x=14-3\\x=11[/tex]
And
[tex]\frac{2+y}{2}=\frac{1}{2}\\2(2+y)=2\\4+2y=2\\2y=2-4\\2y=-2\\y=\frac{-2}{2}\\y=-1[/tex]
The other endpoint coordinates is thus:
(11, -1)