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Co-ordinate Geometry

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Co-ordinate Geometry

by harsh.champ » Fri Feb 19, 2010 2:16 pm
What is the slope of line l which passes through the origin of a rectangular coordinate system?

1. The line does not intersect with the line y = x + 2
2. The line passes through the point (3,3)
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by Amiman » Fri Feb 19, 2010 2:23 pm
Answer is D.

1. It doesn't intersect means 2 lines are parallel. Hence same slope
2. Origin is 1 point and another point given as 3,3. So can calculate the slope.
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by shashank.ism » Sun Feb 21, 2010 5:59 am
harsh.champ wrote:What is the slope of line l which passes through the origin of a rectangular coordinate system?

1. The line does not intersect with the line y = x + 2
2. The line passes through the point (3,3)
L passes through origin (0,0)
St.1) L does not intersect with the line y = x + 2 i.e. it is parallel to y = x + 2 so its slope = 1
sufficient..
St.2) The line passes through the point (3,3) and also through origin (0,0)
so slope = (3-0)/(3-0) = 1.so ==========sufficient

Ans D
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