How do you find the midpoint of (-9,-6) (6,6)?

1 Answer
Mar 15, 2016

Pmid(x,y)(32,0)

Explanation:

Important fact: The mid point on a slope lines up with the mid point of its projection onto an axis.

Thus:

Let P1(x1,y1)(9,6)

Let P2(x2,y2)(6,6)

Mid point is P1+P22x1+x22,y1+y22

Pmid x9+62=32

Pmid y6+62=0

Pmid(x,y)(32,0)