Question

Find the distance between the points (-7, 5) and (4, 1).

Answer 1

2 because the square root is 12 and the distance is 12 units

Answer 2

$\bf \textit{distance between 2 points}\\ \quad \\ \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) &({{ -7}}\quad ,&{{ 5}})\quad % (c,d) &({{ 4}}\quad ,&{{ 1}}) \end{array}\qquad % distance value d = \sqrt{({{ 4}}-{{ (-7)}})^2 + ({{ 1}}-{{ 5}})^2} \\\\\\ d=\sqrt{(4+7)^2+(1-5)^2}$