1.

Consider the following points : 1. (0, 5) 2. (2, -1) 3. (3, -4) Which of the above lie on the line `3x+y=5` and at a distance `sqrt(10)` from (1, 2) ?A. 1 onlyB. 2 onlyC. 1 and 2 onlyD. 1, 2 and 3

Answer» Correct Answer - C
All three points (0, 5, (2, -1) and (3, -4) lie on `3x+y=5`
`sqrt((0-1)^(2)+(5-2)^(2))=sqrt(10)`
`sqrt((2-1)^(2)+(-1-2)^(2))=sqrt(10)`
`sqrt((3-1)^(2)+(-4-2)^(2))=sqrt(40)=2sqrt(10)`


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