## anonymous one year ago I'll fan and give medal!!

1. anonymous

what do you need help with?

2. anonymous

What is the distance from (2, -5) to (-4, 2)? Round your answer to the nearest hundredth.

3. anonymous

0.0 ok well do you have a coordinate plane

4. Nnesha

$\huge\rm \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$ formula to find distance plug in x and y value

5. Nnesha

$\huge\rm (x_1 ,y_1)(x_2 ,y_2)$

6. anonymous

@Nnesha I'm confused

7. Nnesha

8. anonymous

about how to solve the problem with that formula

9. Nnesha

just plug in x and y values |dw:1433296018442:dw| replace x and y by their values

10. anonymous

So do I square each coordinate?

11. Nnesha

yep right first solve parentheses combine (x_2 - x_1) and (y_2 - y_1) then take square

12. anonymous

Crap I forgot to give the answer choices A) 8.60 B) 9.22 C) 3.60 D) 5.09

13. Nnesha

it's okay we can work without answer choices

14. anonymous

ok

15. Nnesha

|dw:1433296391304:dw| plug in numbers and then solve let me know what you get :-)

16. anonymous

@Nnesha (20, 29)

17. Nnesha

how did you get 20 and 29 ? show ur work please

18. Nnesha

x coordinates |dw:1433297060382:dw| so -4-2 = what and THEN Square it

19. anonymous

this is really confusing

20. Nnesha

confusing ? -4-2 = ???

21. anonymous

20

22. Nnesha

teach me how did you get 20?

23. anonymous

$-4\times-4=16$$-2\times-2=4$ $16+4=20$

24. Nnesha

-4-2 combine them add remember PEMDAS rule first solve parentheses and then take square -4-2=-6 so (-6)^2 = ?|dw:1433298018531:dw|

25. Nnesha

$\large\rm \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$\large\rm \sqrt{(-4-2)^2 + (y_2-y_1)^2}$$\large\rm \sqrt{(-6)^2 + (y_2-y_1)^2}$ what is (-6)^2 = ?

26. anonymous

@Nnesha 36

27. Nnesha

yep right $\large\rm \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$\large\rm \sqrt{(-4-2)^2 + (y_2-y_1)^2}$$\large\rm \sqrt{(-6)^2 + (y_2-y_1)^2}$$\sqrt{36+(y_2 -y_1)^2}$ now plug in y values solve just like x-coordinates

28. anonymous

@Nnesha on the last section what do the 2 and 1 right next to both of the y values mean

29. Nnesha

first y and 2nd one in these order pair |dw:1433299520495:dw|

30. anonymous

oh ok

31. anonymous

|dw:1433299711128:dw|

32. Nnesha

square root sqrt{85}

33. Nnesha

|dw:1433299854621:dw| so sqrt{85} = ?

34. anonymous

7,225

35. Nnesha

huh ??

36. anonymous

oh

37. Nnesha

square root not square

38. anonymous

9.22 so my answer is B

39. Nnesha

ye

40. anonymous

cool