Question

question:
A line segment AB has endpoints at A(5,9) and B(-7,
-15). What is the sum of the coordinates of its midpoint?

Answer 1

-4 i think

Answer 2

HOw do you figure?

Answer 3

first find the midpoint:
5-7/2=-1
9-15/2=-3
then add them : -1-3=-4

Answer 4

our answer key says you are correct IA-just unsure how to get it!

Answer 5

Thanks

Answer 6

why do you divide by 2?

Answer 7

because you have to find the mid point, so the x and y values of the mid point are half of the distance between the two end points of the line

Answer 8

thanks, that makes sense