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# This stuff is elementary but for some reason this doesn't

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Director
Joined: 10 Feb 2006
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This stuff is elementary but for some reason this doesn't [#permalink]  29 Sep 2006, 13:29
This stuff is elementary but for some reason this doesn't make too much sense to me : What's the best way to learn the x and y coordinates and answer the following question. Appreciate your input :

In the xy-coordinate plane, the slope of line l is 3/4. Does line l pass through the point (-2/3, 1/2) ?

(1). Line l passes through the point (4,4)
(2). Line l passes through the point (-4,-2)
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Joined: 31 Jul 2006
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Re: coordinates [#permalink]  29 Sep 2006, 13:56
alimad wrote:
This stuff is elementary but for some reason this doesn't make too much sense to me : What's the best way to learn the x and y coordinates and answer the following question. Appreciate your input :

In the xy-coordinate plane, the slope of line l is 3/4. Does line l pass through the point (-2/3, 1/2) ?

(1). Line l passes through the point (4,4)
(2). Line l passes through the point (-4,-2)

Remember y=bx+m .. b is that slope, m is the value of where line intercepts y axys.

1. gives us 4=3/4*4+m
so m =1. now plug -2/3 for x and 1 for m. does it equal to 1/2?. if yes, then the line does pass. suff.

now you can do 2) similar way
Re: coordinates   [#permalink] 29 Sep 2006, 13:56
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# This stuff is elementary but for some reason this doesn't

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