Question

Find the distance between the two points. Round to the nearest tenth if necessary. (2, 5) and (–1, –5)

A. 1

B. 109

C. 10.4

D. 3

Answer 1

Use the distances formula:

\[D = \sqrt{(x-x)^2 + (y-y)^2}\]

So: 2 - -1 = 3, square that and you get 9
5 - -5 = 10, square that and you get 100.

Add them together 100 + 9 = 109 and take the square root.

D = 10.4403...

So: C. 10.4