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

- anonymous

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- anonymous

@mathstudent55

- anonymous

@jim_thompson5910

- anonymous

@timo86m

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## More answers

- anonymous

@Hero

- anonymous

@some_someone

- jim_thompson5910

what are the two points and what is your answer?

- anonymous

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

- jim_thompson5910

how is point B 517?

- jim_thompson5910

it should be an ordered pair

- jim_thompson5910

points are of the form (x,y)

- anonymous

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

- anonymous

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

- jim_thompson5910

oh it's on a number line, i see

- anonymous

yes it is

- jim_thompson5910

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

- anonymous

oh no!

- jim_thompson5910

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

- jim_thompson5910

so the distance from A to B is 1838 units

- jim_thompson5910

cut that distance in half to get your answer

- anonymous

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

- jim_thompson5910

yep

- anonymous

What would the midpont be?

- anonymous

*midpoint

- jim_thompson5910

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

- anonymous

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

- jim_thompson5910

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

- anonymous

Okay, I have another question if you dont mind

- anonymous

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

- anonymous

I got 194.5 but im not sure

- jim_thompson5910

good, but it's negative

- jim_thompson5910

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

- anonymous

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

- jim_thompson5910

hmm you're probably thinking distance and not midpoint

- anonymous

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

- jim_thompson5910

yes midpoints can easily be negative

- anonymous

okay, thank you:) i appreciate it

- jim_thompson5910

you're welcome

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