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B is the midpoint of AC. A has coordinates (-3, 4) and B has coordinates (-1 ½, 1). Find the coordinates of C.
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B is the midpoint of AC. A has coordinates (-3, 4) and B has coordinates (-1 ½, 1). Find the coordinates of C.

User Axemasta
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A*C = B, so vecAB = vecBC, vecAB = (-1/2+3, -3) and vecBC(xc+1/2, yc-4)
it means -1/2+3 = xc+1/2, -3=yc-4, so C(2, -1)
User Cobus Kruger
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