Cześć!
Obliczenia
[tex]A=(-4,-3)\longrightarrow x_A=-4, \ y_A=-3\\\\B=(1,3)\longrightarrow x_B=1, \ y_B=3\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\\\|AB|=\sqrt{(1-(-4))^2+(3-(-3))^2}\\\\|AB|=\sqrt{(1+4)^2+(3+3)^2}\\\\|AB|=\sqrt{5^2+6^2}\\\\|AB|=\sqrt{25+36}\\\\\huge\boxed{|AB|=\sqrt{61}}[/tex]
