Question

Find the distance between the points (4, 2) and (-8, 7).
A.
13
B.
15
C.
12
D.
11

Answer 1

distance formula is
\[\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}\]

Answer 2

d=sqrt((x2-x1)^2+(y2-y1)^2)
(x1,y1)=(4, 2)
(x2,y2)= (-8, 7)
d=sqrt((-8-4)^2+(7-2)^2)
d=sqrt((-12)^2+(5)^2)
d=sqrt(144+25)
d=sqrt(169)
d=13