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Coordinate geometry

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Coordinate geometry

by cartera » Mon Jan 12, 2009 4:21 pm
In a rectangular coordinate system, does line k intersect quadrant II?

(1) The slope of k is -1/6

(2) The y-intercept of k is -6





OA is Abut can anybody explain why a negative slope can only intercept at quadrant 2? where can i find more information?

thanks
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by amitabhprasad » Mon Jan 12, 2009 8:12 pm
Remember this
Lines with a positive slope always pass through quadrants I and III. They also pass through exactly 1 of quadrant II, quadrant IV or the origin (i.e. 0,0).

Lines with a negative slope always pass through quadrants II and IV. They also pass through exactly 1 of quadrant I, quadrant III or the origin.

To learn more about slopes refer to this link
https://www.wtamu.edu/academic/anns/mps/ ... _slope.htm
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by coffee5251 » Tue Jan 13, 2009 11:06 am
Is the answer A?
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