## ineedyouubiebs 2 years ago Point A is at -1,321 and point b is located at 517. What is the distance from either endpoint to the midpoint. I have my answer I wanna check if its right

1. ineedyouubiebs

@mathstudent55

2. ineedyouubiebs

@jim_thompson5910

3. ineedyouubiebs

@timo86m

4. ineedyouubiebs

@Hero

5. ineedyouubiebs

@some_someone

6. jim_thompson5910

7. ineedyouubiebs

The 2 points are A -1,321 and B 517. My answer is 919

8. jim_thompson5910

how is point B 517?

9. jim_thompson5910

it should be an ordered pair

10. jim_thompson5910

points are of the form (x,y)

11. ineedyouubiebs

No the question issnt asking for ordered pairs. It's a line with points so it'll be like|dw:1379387454390:dw|

12. ineedyouubiebs

and then its asking for the distance from either endpoint to the midpoint

13. jim_thompson5910

oh it's on a number line, i see

14. ineedyouubiebs

yes it is

15. jim_thompson5910

I thought when you wrote out A -1,321 you meant (-1,321) or something

16. ineedyouubiebs

oh no!

17. jim_thompson5910

the distance from A -1,321 and B 517 on the number line is found by subtracting 517 - ( -1321) 517 + 1321 1838

18. jim_thompson5910

so the distance from A to B is 1838 units

19. jim_thompson5910

20. ineedyouubiebs

Correct.Okay, when I divide it by 2 I get 919

21. jim_thompson5910

yep

22. ineedyouubiebs

What would the midpont be?

23. ineedyouubiebs

*midpoint

24. jim_thompson5910

add the two values, then divide by 2 to get the midpoint

25. ineedyouubiebs

oh, so instead of subtracting like we did here, we add!1 ohhhhh

26. jim_thompson5910

yep, that's correct because the formula is M = (x1+x2)/2

27. ineedyouubiebs

Okay, I have another question if you dont mind

28. ineedyouubiebs

What would the midpoint of Line AB is at -421 and A is at 32?

29. ineedyouubiebs

I got 194.5 but im not sure

30. jim_thompson5910

good, but it's negative

31. jim_thompson5910

since -421 is a much bigger number in the negative direction

32. ineedyouubiebs

but before we were taught that we would always put the absolute value of that number

33. jim_thompson5910

hmm you're probably thinking distance and not midpoint

34. ineedyouubiebs

yeahhh! oh so when finding the midpoint the number COULD be negative, correct?

35. jim_thompson5910

yes midpoints can easily be negative

36. ineedyouubiebs

okay, thank you:) i appreciate it

37. jim_thompson5910

you're welcome