Find the coordinates of the other endpoint of a segment with the given endpoint and mid point 28) Q(-5, 9) M(-8, -2)
29) A(6,7) M(10, -7)
30) D(-3.5, -6) M(1.5, 4.5)

Question

Find the coordinates of the other endpoint of a segment with the given endpoint and mid point 28) Q(-5, 9) M(-8, -2) 
29) A(6,7) M(10, -7) 
30) D(-3.5, -6) M(1.5, 4.5)

anonymous · Answer

28.P(-11,-13)
29.B(14,-21)
30.C(6.5,15)

anonymous · Answer

Can you show the work for these problems? Please

anonymous · Answer

use mid point formula if end points are (x,y)and (a,b)
let (p,q) be the mid point
then p=(a+x/2,b+y/2)

anonymous · Answer

How would it look like?

anonymous · Answer

take second question 
let (x,y) be an end point then from given data 10=x+6/2
-7=y+7/2

anonymous · Answer

OHHHHHHHHH!!!! Okay so it would be -5=x+9/2 right?

anonymous · Answer

yes

anonymous · Answer

and then the bottom one is going to be -8=y+(-2)/2?

anonymous · Answer

How did you get -11 for the first point? I am getting -19