[tex]\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
M&({{ 6}}\quad ,&{{ 16}})\quad
% (c,d)
Z&({{ -1}}\quad ,&{{ 14}})
\end{array}\quad
% distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
MZ=\sqrt{(-1-6)^2+(14-16)^2}\implies MZ=\sqrt{(-7)^2+(-2)^2}
\\\\\\
MZ=\sqrt{49+4}\implies MZ=\sqrt{53}\implies MZ\approx 7.3[/tex]
