What is the midpoint of the segment shown below?

B

Step-by-step explanation:

3 is too high up to be in the middle of the line, so the y value must be and this eliminates C and D as possible answers. -7 is too far back on the y axis, so this eliminates A. We are left with B.

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.