Question

Find the distance between (8,2) and (-1,0).

Answer 1

The given points are (8,2) and (-1,0).

We just need to use the following formula and the given points

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Replacing the given points, we have

$\begin{gathered} d=\sqrt{(-1-8)^2+(0-2)^2} \\ d=\sqrt{(-9)^2+(-2)^2} \\ d=\sqrt{81+4}=\sqrt{85}\approx9.2 \end{gathered}$

Therefore, the distance between the given points is 9.2 units, approximately.