Question

A(-3,2) B(5,-4) midpoint is (1,-1)

Use the midpoint formula to find endpoint C, such that B is the midpoint of AC. HELPP PLEASE.

Answer 1

`CHECK:\\\\the\ midpoint\ AB:\left((-3+5)/(2);\ (2-4)/(2)\right)=\left((2)/(2);\ (-2)/(2)\right)=(1;-1)\\-------------------------------\\C(x;\ y)\\\\the\ midpoint\ AC:\left((-3+x)/(2);\ (2+y)/(2)\right)\\\\B\ is\ the\ midpoint\ AC\ then:\\\\(-3+x)/(2)=5\ and\ (2+y)/(2)=-4\\\\-3+x=10\ and\ 2+y=-8\\\\x=10+3\ and\ y=-8-2\\\\x=13\ and\ y=-10\\\\Solution:C(13;-10).`