A(x;2) B(3;y) AB(2,1) x,y-?

Question

A(x;2) B(3;y) AB(2,1) x,y-?

Answer 1

AB(x2-x1;y2-y1)
x2-x1=2
3-x1=2
x1=1

y2-y1=1
y2-2=1
y2=3

Ответ: x1=1 y2=3