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b is the midpoint of AC and E is the midpoint of BD if A(-9,-4) C(-1,6) and E(-4,-3) find the coirdinates of D

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Answer:

Explanation:


B=((-9-1)/(2),(-4+6)/(2) ) (midpoint formula)\\B=(-5,1)\\\\Then using midpoint formula again,\\E=(-4,3)=((-5+x)/(2) =-4,(1+y)/(2) =3)\\so \\x=-3\\y=5\\\\D=(-3,5):

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