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#1
Not sure where to start with this question. Need some help to point me in the right direction.

The line AB meets the line 3x+2y-21 = 0 at M. Find the coordinates of M and show that M devides AB in the ratio 2:1.

So far I've changed the equation to 2y = -3x+21
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5 years ago
#2
(Original post by PeaceTreaty)
Not sure where to start with this question. Need some help to point me in the right direction.

The line AB meets the line 3x+2y-21 = 0 at M. Find the coordinates of M and show that M devides AB in the ratio 2:1.
I presume there was more to the question
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#3
(Original post by TenOfThem)
I presume there was more to the question
Sorry, left out part a: A(-3,2) B(6,8) I worked out it's equation is y = 2/3x+4.
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5 years ago
#4
(Original post by PeaceTreaty)
Sorry, left out part a: A(-3,2) B(6,8) I worked out it's equation is y = 2/3x+4.
So, you know what y is

Substitue that into the curve equation
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#5
(Original post by TenOfThem)
So, you know what y is

Substitue that into the curve equation
So 2(2/3x+4) = -3x+21

Do I need to put in a value for x or just ignore it?
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#6
(Original post by TenOfThem)
So, you know what y is<br />
<br />
Substitue that into the curve equation
<br />
<br />

(Original post by PeaceTreaty)
So 2(2/3x+4) = -3x+21<br />
<br />
Do I need to put in a value for x or just ignore it?
<br />
<br />

Nvm thanks for the help.
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