BITSAT2012MathematicsStraight LinesActual
The nearest point on the line 3 x+4 y=12 from the origin is
Options
- A( 36 25 , 48 25 )
- B(3, 3 4 )
- C(2, 3 2 )
- DNone of these
Correct answer
A. ( 36 25 , 48 25 )
Step-by-step solution
If ' D ' be the foot of altitude, drawn from origin to the given line, then ⁴ D ^ is the required point. Let OBA = =4 / 3 DOA = aligned & we have OD =12 / 5 . & If D is (h, k) then h=O D , k=O D & h =36 / 25, k =48 / 25 . aligned