In xy plane, does the line with equation y=3x+2 contain point (r,s)?
1) (3r + 2 - s)(4s + 9 - s) = 0
2) (4r - 6 - s)(3r + 2 - 5) = 0
Hey MBAlad, i guess the second condition must be (4r-6-s)(3r+2-s)=0
Then only the answer will be C
From 1 : (3r+2-s)(4s+9-s)=0 means
(3r+2-s) = 0 or ((4s+9-s) = 0
If (3r+2-s) = 0 then the line passes through (r,s).
If we consider the second case we can't determine.
Similarly From 2: also we get the same answer.
Combining both we can conclude that 1 and 2 will be equal to 0 provided only (3r+2-s) = 0 and hence the answer is C.
But i think the correction must be there in stat 2 as i mentioned earlier
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