[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\(\stackrel{x_1}{-22}~,~\stackrel{y_1}{15})\qquad(\stackrel{x_2}{30}~,~\stackrel{y_2}{-25})\qquad \qquadd = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}\\\\\\d=\sqrt{[30-(-22)]^2+[-25-15]^2}\implies d=\sqrt{(30+22)^2+(-25-15)^2}\\\\\\d=\sqrt{52^2+(-40)^2}\implies d=\sqrt{4304}\implies d\approx 65.60488[/tex]
