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hard problem from GMATPrep

by tanviet » Tue Jan 26, 2010 4:03 am
Pls, help with this

II I

-------0---------------------->

III IV

Is the line k pass through section II of plane x,y ( I do not know how to draw axis y)

1, slope of k is -1/6

2, y-intercept of k is 6
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by ajith » Tue Jan 26, 2010 4:19 am
duongthang wrote:Pls, help with this

II I

-------0---------------------->

III IV

Is the line k pass through section II of plane x,y ( I do not know how to draw axis y)

1, slope of k is -1/6

2, y-intercept of k is 6

the standard equation of the line y = mx + c [ m = slope, c = y intercept]

here the equation of the line : y = -1/6 x +6

6y+x = 36

The x intercept of this line is (36,0)

and y intercept is (0,6)

From these it is apparent that the line will pass through quadrant 2, the only quadrant it will miss is 3 rd quadrant.
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