Question

What is the distance between point A and point B? Round to the nearest tenth.

Answer 1

B. 2.2 units 

That's my answer

Answer 2

Distance formula is like pythagoren ahtoerem
D=$\sqrt{(7-2)^{2}+(5-8)^{2}}$
the distance between oints (x1,y1) and (x2,y2) is
D=$\sqrt{(x1-x2)^{2}+(y1-y2)^{2}}$
A=(-3,-1) and (5,2)
D=$\sqrt{(-3-5)^{2}+(-1-2)^{2}}$
D=$\sqrt{(-8)^{2}+(-3)^{2}}$
D=$\sqrt{64+9}$
D=$\sqrt{73}$
aprox
D=8.54
round
D=8.5 units

C
apxos
D=5.8309....

round
D=5.8 units