Find the distance between the pair of points. Round to the nearest tenth if necessary.
-$( 3 , - 7 )$ and $( 6 , - 1 )$
A) $3 \sqrt { 5 } = 6.7$
B) 27
C) $27 \sqrt { 3 } = 46.8$
D) 3

Question

Quizplus · Accepted Answer

The distance formula is $\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}$. Plugging in the coordinates, we have $\sqrt{(6-3)^2 + (-1+7)^2} = \sqrt{9+36} = \sqrt{45} = 3\sqrt{5} \approx 6.7$. Therefore, the answer is choice A.

Find the Distance Between the Pair of Points (3,−7)( 3 , - 7 )(3,−7)

Find the Distance Between the Pair of Points $( 3 , - 7 )$