If (4,-3) is the midpoint of the line segment ST and the coordinates of S are (1,5), find the coordinates of T. What is the answer to this question?
1 Answer
Mar 16, 2018
Explanation:
#"let the midpoint be "M(4,-3)#
#"since M is the midpoint then"#
#vec(SM)=vec(MT)#
#rArrulm-uls=ult-ulm#
#rArrult=2ulm-uls#
#color(white)(rArrult)=2((4),(-3))-((1),(5))#
#color(white)(rArrult)=((8),(-6))-((1),(5))=((7),(-11))#
#rArr"coordinates of T "=(7,-11)#