Question

Find the distance between the points $(-7,2)$ and $(5,2)$

Answer 1

The line joining $(5,2)$ and $(-7,2)$ is parallel to x-axis. Hence, the distance
$d=|x_1-x_2|=|-7-5|=|-12|=12$ units
Aliter:
$d=\sqrt{(x_2-x_1{)}^2+(y_2-y_1{)}^2}=\sqrt{(5+7{)}^2+(2-2{)}^2}={\sqrt{12}}^2=144=12$ units