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Coordinate Geometry

 
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grkmurthy
Senior Consultant


Joined: 14 Oct 2007
Posts: 37
PostPosted: Tue Nov 27, 2007 5:40 pm    Post subject: Coordinate Geometry Reply with quote
The equation x = 2y - 5 defines a line in the xy - coordinate system and (p, q) & (p+2, q+c) are two points on the line. What is the value of c?

(1) 2
(2) 2/5
(3) 7
(4) 3
(5) 1
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ksvickram
Senior Consultant


Joined: 02 Jan 2008
Posts: 29
PostPosted: Mon Jan 07, 2008 7:23 pm    Post subject: Reply with quote
The value of C is '1', choice 5. Laughing

This is obtained by substituting the tow points in the equation of the line, thereby forming two equations in x,y and c and solving them simultaneously.
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