## anonymous one year ago Am I right on this?... To find the distance from two points in a graph I use the x1,y1 and x2,y2 formula?

1. jim_thompson5910

I think you are referring to this formula? $\Large d = \sqrt{\left(x_{2}-x_{1}\right)^2+\left(y_{2}-y_{1}\right)^2}$

2. anonymous

but it looks like this...

3. jim_thompson5910

ok you can use that formula above, or you can simply count out the spaces between the two points you can only count out the spaces if a) the points have the same x coordinate (one point is directly above the other) OR b)the points have the same y coordinate (the two points are on the same horizontal level)

4. anonymous

(-7,5) (-7,-3) the points do have the same x.

5. jim_thompson5910

so you can count out the spaces between the points if you don't want to count out the spaces, you can subtract the coodinates that aren't the same (in this case, the y coordinates) take the absolute value to ensure the result is positive |5 - (-3)| = ??

6. anonymous

(0,2) ??

7. anonymous

Am i right?

8. jim_thompson5910

no, the distance is going to be a single number

9. anonymous

so 2

10. jim_thompson5910

5 - (-3) is not equal to 2

11. anonymous

i mean 7

12. jim_thompson5910

the two negatives make a positive 5 - (-3) = 5+3 = 8

13. jim_thompson5910

count it out: there are 8 spaces between the two points

14. anonymous

i am horrible at math today.

15. anonymous

thanks

16. jim_thompson5910

you're welcome