Question

Use the distance formula to find the distance between the pair of points (8,5) and (-1,3)

Answer 1

we have the following;

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

replacing:

$\begin{gathered} d=\sqrt{(-1-8)^2+(3-5)^2} \\ d=\sqrt{(-9^2+(-2)^2} \\ d=\sqrt{81+4} \\ d=\sqrt{85}=9.22 \end{gathered}$

therefore, the answer is 9.22 units