Question

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

A.
9.1 units

B.
2.2 units

C.
8.5 units

D.
4.6 units

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=
`√(64+9)`
D=
`√(73)`
aprox
D=8.54
round
D=8.5 units

C
apxos
D=5.8309....

round
D=5.8 units