Question 62212
Midpoint:
(x, y)
(x1+x2)/2 , (y1+y2)/2
(-9+(-3))/2 , (4+(-4)/2 [plug-in the values]
(-12/2, 0/2)
(-6, 0)
.
Length or distance:
distance (d) = {{{(sqrt((x1-x2)^2+(y1-y2)^2))}}}
d={{{(sqrt((-9)-(-3)^2+((4)-(-4)^2)))}}}

d={{{(sqrt((-6)^2+((8)^2)))}}}
d={{{(sqrt((36+64)))}}}
d={{{(sqrt((100)))}}}
d=10