JEE Main2004MathematicsStraight LinesActual
Let A(2,-3) and B(-2,1) be vertices of a triangle A B C . If the centroid of this triangle moves on the line 2 x+3 y=1 , then the locus of the vertex C is the line
Options
- A2 x+3 y=9
- B2 x-3 y=7
- C3 x+2 y=5
- D3 x-2 y=3
Correct answer
A. 2 x+3 y=9
Step-by-step solution
If C be ( h , k ) then centroid is ( h / 3,( k -2) / 3) it lies on 2 x+3 y=1 . locus is 2 x+3 y=9