in desperate need of some help

Question

anonymous · Answer

what is the question

anonymous · Answer

@Dmex PB has end points at -2. what is the coordinate of its midpoint  can you explain this to me step by step?

dumbcow · Answer

the midpoint is the avg of the 2 x and y values

endpoints:  (x1,y1)  (x2,y2)

midpoint = (x1+x2)/2 , (y1+y2)/2

anonymous · Answer

@dumbcow  thats the formula ?  right? so how do you solve it ?

dumbcow · Answer

plug in the x,y values from given endpoints

anonymous · Answer

@dumbcow ...

anonymous · Answer

@dumbcow i oh ok i see, do i plug it in to both of the formulas

dumbcow · Answer

only 1 formula
$$midpoint = (\frac{x1+x2}{2}, \frac{y1+y2}{2})$$

anonymous · Answer

@dumbcow i only have one pair of pairs (if that makes any since

dumbcow · Answer

hmm can you repost the question

anonymous · Answer

sure 

PB has end points at -2 and 12. what is the coordinate of its midpoint

dumbcow · Answer

oh so its on a straight line
even easier, this means there are no "y" values

simply take the avg of -2 and 12

anonymous · Answer

@dumbcow can you just guide me threw the steps cause i'm getting a little confused

dumbcow · Answer

do you know how to take the average of 2 numbers?

dumbcow · Answer

its the formula i gave above

anonymous · Answer

yea i do

anonymous · Answer

@dumbcow did i loose you

dumbcow · Answer

nope so what is the average of -2 and 12 ?

anonymous · Answer

nevermind but thanks for the help

dumbcow · Answer

??
did you get the answer

avg  = (x1+x2)/2

dumbcow · Answer

(-2+12)/2 = 10/2 = 5

dumbcow · Answer

5 is halfway between -2 and 12