help please =)

  • 1 vote

can u pleaz hlp me answer dis q

cn u also explain hw u did it

thnx =P

the point A has coordinates (-5,1)

the point B has coordinates (7,y)

the point (x,6) is the midpoint of the line segment AB

find the value of x and y

Posted Wed 6th June, 2012 @ 14:51 by Sabah x

50 Answers

  • 4 votes

Well Sabah it is really simple watch ill show u!!

Now first u want to work out the "y" value for co-ordinate B.

U know that the midpoint of the Y values is when u add the Y values together and divide by two.... so wot u do is the inverse!!!!

So u know that the midpoint has a Y value of 6 so the inverse is multiply by 2 and - the other Y value.. So here it is below

(yA = y-coordinate for A)

(yB = y coordinate for B)

6  =  yA  +  yB

       -----------

            2   

put the values u know:

6 = 1  +  yB

      ---------

          2

Make yB  the subject by multiplying by 2 and minus 1

6 X 2 = 1+ yB

12 = 1 + yB

yB = 12-1

yB = 11

Now the same method for the x value just work out the midpoint as usual!!!

So below:

-5 + 7

-------   =  midpoint x-coordinate

   2

2

-- =midpoint x-coordinate

2

midpoint x-coordinate = 1

So your co-ordinates!!!!!!!!!

A (-5,1)

B (7,11)

Midpoint (1,6)

Hope i helped bbe ;D **

Answered Wed 6th June, 2012 @ 17:26 by Braniac
  • 2 votes

x=(5+7)/2 (as its half way between the two points. ignore the '-' on the 5)
12/2 =6 
-5+6=1
x=1 

y= 6-1=5 (as 6 half way between the two points)
6+5=11 
y=11 

Answered Wed 6th June, 2012 @ 15:12 by Né M
  • 1 vote

thnx beelal hlped alot =P

Answered Wed 6th June, 2012 @ 17:35 by Sabah x
  • 0 votes

thnx =P

Answered Wed 6th June, 2012 @ 15:18 by Sabah x
  • 0 votes

lol nps =D

Answered Wed 6th June, 2012 @ 17:37 by Braniac
  • 0 votes

=P

Answered Wed 6th June, 2012 @ 18:27 by Sabah X
  • 0 votes

;D **

Answered Wed 6th June, 2012 @ 18:44 by Braniac
  • 0 votes

;) xxxxxxxxxxxxxxxxxxxxxxxxx

Answered Wed 6th June, 2012 @ 18:52 by Sabah X
  • 0 votes

lol sabah WTH the discussion got deleted next XD **

Answered Wed 6th June, 2012 @ 19:03 by Braniac
  • 0 votes

ik wth =(

listen i hv 2 go

byeeeeeeee

ill tlk 2 u sme ova tym nd i hpe our discussions dnt gt deleted =P

Answered Wed 6th June, 2012 @ 19:04 by Sabah X
  • 0 votes

yh kl cya

Answered Wed 6th June, 2012 @ 19:05 by Braniac
  • 0 votes

byee

oh nd btw i changed ma nme =P

lol im weird ik

Answered Wed 6th June, 2012 @ 19:11 by Sabah X
  • 0 votes

lol ur so weird but thats why we like u ;D

Answered Wed 6th June, 2012 @ 19:51 by Braniac
  • 0 votes

lol awww thnx =P

Answered Wed 6th June, 2012 @ 20:49 by Sabah X
  • 0 votes

im sooo amazed dt dis dint gt deleted

Answered Wed 6th June, 2012 @ 20:50 by Sabah X
  • 0 votes

yh becuz it has maths n stuff like that

Answered Wed 6th June, 2012 @ 20:54 by Braniac
  • 0 votes

lol yeah half of it has =P

Answered Wed 6th June, 2012 @ 20:55 by Sabah X
  • 0 votes

very true indeed. How u ???

Answered Wed 6th June, 2012 @ 20:56 by Braniac
  • 0 votes

im ok wbu??????????

Answered Wed 6th June, 2012 @ 20:57 by Sabah X
  • 0 votes

yh im fine just about survvin without u ===> now the post gonna get deleted but im gonna carry on XD ***

Answered Wed 6th June, 2012 @ 20:57 by Braniac
  • 0 votes

lol =P ur a badboii <----(rndm)

Answered Wed 6th June, 2012 @ 20:58 by Sabah X
  • 0 votes

oh yh bbez ill be bak in 5, gotto go fro namaaz ===> but slip into sumething gud n ill be back XD ***

Answered Wed 6th June, 2012 @ 20:59 by Braniac
  • 0 votes

lol k =P i will

Answered Wed 6th June, 2012 @ 21:00 by Sabah X
  • 0 votes

u better bbez coz ima gonna pounce on uuuuuuu (lol imagine if u r bf read this XD )***

Answered Wed 6th June, 2012 @ 21:02 by Braniac
  • 0 votes

lol lt im =P

*** w8 (2 learn biology oh nd probs a bt of chem ) ;)

Answered Wed 6th June, 2012 @ 21:04 by Sabah X
  • 0 votes

yo heyyy Sabah ready!! (to revise XD ***)

Answered Wed 6th June, 2012 @ 21:39 by Braniac
  • 0 votes

lol yeah lts gt da revision on ;)

Answered Wed 6th June, 2012 @ 21:41 by Sabah X
  • 0 votes

lol where do u want me to start teachin u from lol XD ===> actually ur probably better then me in this so il ask the teacher instead ^^ ***

Answered Wed 6th June, 2012 @ 21:43 by Braniac
  • 0 votes

hmmm yeah i probz am even though ur doin a level =P

tbh i really dnt know anythin in bio apart from the human body bit ;)

Answered Wed 6th June, 2012 @ 21:44 by Sabah X
  • 0 votes

thats gud enough, coz i havent got much knowledge in human body, perfect i just found a tutor for free (will u be chargin XD ). Lol teacher r u gonna include practical lessons as well XD ***

Answered Wed 6th June, 2012 @ 21:46 by Braniac
  • 0 votes

lol yeah practical lessons ;)

no charge (cos im nyc =P )

ma mums startin 2 wnder if im really revisin cos i keep smilin wen i see ur comment =P

Answered Wed 6th June, 2012 @ 21:48 by Sabah X
  • 0 votes

lol XD . Same here , but i try to keep it within n release wen its time ====> let me guess teacher u do home schoolin lol XD ***

Answered Wed 6th June, 2012 @ 21:52 by Braniac
  • 0 votes

welll yeah wteva u lyk ;)

lol

Answered Wed 6th June, 2012 @ 21:53 by Sabah X
  • 0 votes

thats gud enough for me XD xxxx

Answered Wed 6th June, 2012 @ 21:56 by Braniac
  • 0 votes

gud =P

soo wens our 1st lesson?!?!?!?

Answered Wed 6th June, 2012 @ 22:33 by Sabah X
  • 0 votes

hmmmm first lesson====> ur house =====> should we go anatomy then reproductive system, then move to respiratory system =D ***

Answered Wed 6th June, 2012 @ 22:37 by Braniac
  • 0 votes

wteva suits u betta

sooo ill see u at 12

afta namaz

Answered Wed 6th June, 2012 @ 22:39 by Sabah X
  • 0 votes

hmmm let mee think wen will u be on====> u prefer night lessons ??? ***

Answered Wed 6th June, 2012 @ 22:40 by Braniac
  • 0 votes

lol idr mind =P wbu?

Answered Wed 6th June, 2012 @ 22:47 by Sabah X
  • 0 votes

lol hey Sabah

Answered Wed 6th June, 2012 @ 23:24 by Braniac
  • 0 votes

heyyyyyyyyyyyyyyyy =P

Answered Wed 6th June, 2012 @ 23:25 by Sabah X
  • 0 votes

cya bbez =D gotta n early morning coz im off to gym in da mornin so ill tlk to u later tmoz =D cya

Answered Wed 6th June, 2012 @ 23:32 by Braniac
  • 0 votes

lol calm it guys =P

nd sabah i dnt mnd u teachin me

Answered Thu 7th June, 2012 @ 17:11 by waqar
  • 0 votes

lol waqar get in line XD. Shes got a queue of boys waitin XD

Answered Thu 7th June, 2012 @ 17:20 by Braniac
  • 0 votes

lol hw lngs da line =P

i dnt wanna w8 2 lng

Answered Thu 7th June, 2012 @ 17:55 by waqar
  • 0 votes

wtf?????

lyk sooo confused iz dis supposed 2 be a revision site or a dating 1??????

Answered Wed 19th September, 2012 @ 16:39 by Akeel 786
  • 0 votes

Can you people not spell? =P

Answered Wed 17th October, 2012 @ 15:03 by Jason Taylor
  • 0 votes

wellll nahhh nt really XD

Answered Wed 17th October, 2012 @ 21:05 by Akeel 786
  • 0 votes

 better bbez coz ima gonna pounce on uuuuuuu (lol imagine if u r bf read this XD )***

Answered Wed 6th June, 2012 @ 21:02 by Braniac lol yeah hez readin it nd truss me hez nt happi

Answered Wed 17th October, 2012 @ 21:11 by Akeel 786
  • 0 votes

LOL AKEEL XDD

Answered Fri 19th October, 2012 @ 20:03 by Waqar Khanny :)