Question

Find the distance of line AB if A (3,5) and B (-3,-3).
A. 8
B. 6
C. 12
D. 10
When I use the distance formula to find the answer, I get 2 but that isn't even an option here. Help?

Answer 1

which formula you used

Answer 2

3--3 is not 0

Answer 3

5--3 is not 2

Answer 4

@Nnesha
the distance formula

Answer 5

@amistre64
I was following an example that added 3+(-3) and 5+(-3). is that not right?

Answer 6

the distance between the xs is subtraction, not addition

when we want to find the distance between 2 things, a and b, we do: b - a

Answer 7

d = sqrt( (x1-x2)^2 + (y1- y2)^2 )
^ ^

Answer 8

lets 'move' the points so that one of them is at the origin

A (3,5) and B (-3,-3).
-3,-5 -3,-5
-------------------
A' = 0,0 B' = -9,-8

the distance hasnt changes, just where they are located

Answer 9

lol, -6,-8

Answer 10

@amistre64
d = (-3 - 3)^2 + (-3 - 5))^2
= (-6)^2 + (-8)^2
= -14 (?)

Answer 11

sqrt(36 + 64 ) not sqrt(6+8)

Answer 12

how you get negative answer
when you take square its mean - 6 times - 6 so its just 36 and same with 8 square

Answer 13

@amistre64
whoops, I forgot to square it lol
so d = 10

Answer 14

yep :)

Answer 15

:)

Answer 16

@amistre64 @Nnesha thanks to the both of you :)

Answer 17

nope mostly thanks to @amistre64