square root [(x2-x1)squared + (y2-y1)squared]

in this case you would do

square root [ (-5 – -4)squared + (-3 – 0)squared]

simplified this would be:

square root [ ( -1)squared _+ (-3)squared]

this would equal the square root of 10

number 2:

http://img510.imageshack.us/img510/7858/mathproblemhelpcm6.jpg

i couldn’t do this one without some paper and pencil : )

i hope this helps, but be sure to check your answers because i’m not sure if these are completley correct.

(-4, 0) (-5, -3)

(x1, y2) (x2 – y2)

D = √(-5 – -4)2 + (-3 – 0)2

D = √(-1)2 + (-3)2

D = √1+ 9

D = √10

SECOND ONE:

33 Using google calculator