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#1 2009-06-11 17:30:00
- Dharshi
- Member
- Registered: 2006-10-31
- Posts: 56
Maths
if point M(5, 4) is the mid-point of chord AB, then the slope of chord AB is___the answer given is -5/4 can anyone help me?
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#2 2009-06-12 00:45:18
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: Maths
That's not enough information to answer the question.
Something else is needed, like the position of A or B for example.
Why did the vector cross the road?
It wanted to be normal.
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#3 2009-06-12 01:01:30
- noobard
- Member
- Registered: 2009-06-07
- Posts: 28
Re: Maths
nothin can be said
Everything that has a begining has an EnD!!!
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#4 2009-06-12 07:04:08
- integer
- Member
- Registered: 2008-02-21
- Posts: 79
Re: Maths
if point M(5, 4) is the mid-point of chord AB...
then the slope of chord AB is RED
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#5 2009-06-13 20:41:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: Maths
For finding the slope, the two endpoints of a line segment ought to be known.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#6 2009-06-14 03:18:34
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Maths
Hi;
It looks like Dharsi is being given the slope (-5/4) through the midpoint (-5,-4}. This is an interpretation that allows us to continue.You can now get the equation of the line which passes through that midpoint.
Of course even after this you cannot find the ends of the chord AB.
Last edited by bobbym (2009-06-14 03:33:48)
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#7 2009-07-30 18:46:27
- riad
- Guest
Re: Maths
infinite number of lines pas through a given point regardless being midpoint or any other thing , therfore the conditions are insufficient
w.b.w
Mr riad zaidan
Al-Quds Open university
Jenin
Palistine
#8 2009-07-31 09:31:33
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Maths
Hi riad;
That is correct. Since to me it looks like he is given a point and the slope that narrows it down to 1 line.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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