## anonymous one year ago The length of the line segment whose endpoints are (3,2) and (-2,1) is a. 6 b. 26 c. 3 square root 5 d. square root 26

1. freckles

have you thought about using the distance formula?

2. anonymous

No I haven't

3. freckles

Well try that and let me know if you have any further problems

4. anonymous

ok

5. anonymous

nope i didn't get an answer

6. freckles

$\sqrt{(3-(-2))^2-(2-1)^2}$ which operation are you having a problem with ?

7. freckles

is it the 3-(-2) or the 2-1?

8. freckles

oops and that is suppose to be a + in between those square things

9. freckles

$\sqrt{(3-(-2))^2+(2-1)^2}$

10. anonymous

yeah i getting nothing i cant find an answer

11. freckles

do you know that 3-(-2) is the same as 3+2

12. freckles

do you know how to compute 3+2?

13. freckles

like if you have 3 apples and someone gives you 2 more apples how many apples do you have in all?

14. freckles

|dw:1435618380718:dw| how many dots do you see

15. anonymous

5

16. freckles

yes 3-(-2)= 5

17. freckles

$\sqrt{(3-(-2))^2+(2-1)^2} \\=\sqrt{(5)^2+(2-1)^2}$ do you know how to do 2-1?

18. anonymous

no

19. freckles

if you have 2 dots and you put an x over one dot then how many dots don't have x on them: |dw:1435618543139:dw|

20. anonymous

1

21. freckles

yes 2-1=1

22. freckles

$\sqrt{(3-(-2))^2+(2-1)^2} \\=\sqrt{(5)^2+(2-1)^2} \\ =\sqrt{(5)^2+(1)^2}$ now 5^2 is the same as 5*5 and 1^2 is the same as 1*1 what is 5*5=? and what is 1*1=?

23. anonymous

10

24. freckles

5*5 doesn't mean 5+5

25. anonymous

15

26. freckles

if I see 5*5 I like to think of a 5 by 5 thing of dots |dw:1435618690579:dw| how many dots are there and that is what 5*5 is equal to

27. anonymous

15

28. freckles

that is 3*5

29. freckles

we are wanting 5*5