Question

I thought you went over and up to count the sqaures but i guess not. help??

Answer 1

tell me if the file works..

Answer 2

The file works for me. What you have to do is once you get the coordinates, use the distance formula.

Answer 3

It's a rich text format file. It works for me because I'm on a macbook.

Answer 4

so 7-7=0 and -1- -8=7 so the distance is 7?

Answer 5

K = (7, 7)
L = (-1, -8)

Use the distance formula.
(x2 - x1)^2 + (y2 - y1)^2
(-1 - 7)^2 + (-8 - 7)^2
(-8)^2 + (-15)^2
64 + 225
sqrt(289)

Answer is 17.

Answer 6

No. THe distance formula is \[d = \sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}\]

Answer 7

Note quite, Calcmathlete. It's the 2nd x - first x and the 2nd y - the first y

Answer 8

Doesn't matter. It doesn't matter which way because even if it's negative or positive, the value without the sign would still be the same. FOr example, (-7)^2 and 7^2 is the same thing.

Answer 9

ok ill try more practice problems with the formula. thank you for explaing @bfpGunz

Answer 10

this is all confusing lol!

Answer 11

No problem :)
Don't worry, you'll get it!

Answer 12

@bfpGunz look:
Let's say the points are (3, 4) and (2, 5).
(3 - 2)^2 + (4 - 5)^2 = 2
or if you do it the other way:
(2 - 3)^2 + (5 - 4)^2 = 2
@Aria11 Everyone has trouble with math! :)

Answer 13

@Calcmathlete has the right distance formula.

Answer 14

Maybe watching this will help
http://www.khanacademy.org/math/algebra/ck12-algebra-1/v/distance-formula

Answer 15

@JBrightman3 , As he just showed, they are both the same. And according to http://www.purplemath.com/modules/distform.htm I do.

Answer 16

But @bfpGunz , you need to find the square root of the (x1 - x2)^2 +(y1 - y2)^2. You didn't have that under a square root sign, so the formula was not correct.

Answer 17

I didn't write out the entire formula in the textbox. And if you check the last step, I did.

Answer 18

@phi , thank you. i am much better with visuals!