Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202520 Apr 2025Evening ShiftMathematicsStraight LinesActual

If the equation of the median through vertex A(3, k) of A B C with vertices B (2,1) and C (-4,5) is x+4 y = p , then k = where p and k are constants

Options

  1. A1
  2. B2
  3. C-2
  4. D3

Correct answer

B. 2

Step-by-step solution

The median from vertex A(3, k) passes through the midpoint D of side BC , with B(2, 1) and C(-4, 5) . The midpoint D is given by ( 2 + (-4) 2 , 1 + 5 2 ) = (-1, 3) . Since D lies on the median x + 4y = p , substitution yields -1 + 4(3) = 11 , so p = 11 . Vertex A(3, k) must also satisfy x + 4y = 11 , giving 3 + 4k = 11 , which simplifies to 4k = 8 and thus k = 2 . Final answer: 2

Practice Straight Lines on Quantrex Academy →

More from Straight Lines

The locus of the third vertex of a right-angled triangle, the ends of whose hypotenuse are (1,2) and (4,5) , is 2025The coordinate axes are rotated about the origin in the counter clockwise direction through an angle 60^ . If a and b are the intercepts made on the new axes by a straight line who 2025The image of a point (2,-1) with respect to the line x-y+1=0 is 2025If a straight line is at a distance of 10 units from the origin and the perpendicular drawn from the origin to it makes an angle 4 with the negative X -axis in the negative directi 2025A straight line passing through the origin O meets the parallel lines 4 x+2 y=9 and 2 x + y +6=0 at the points P and Q respectively. Then the point O divides the line segment PQ in 2025A (4,3), B (2,5) are two points. If P is a variable point on the same side as that of the origin with respect to the line AB and is at most at a distance of 5 units from the midpoi 2025By shifting the origin to the point (2,3) through translation of axes, if the equation of the curve x^2+3 x y-2 y^2+4 x-y-20=0 is transformed to the form Ax ^2+ Bxy + Cy ^2+ Dx + E 2025The points (2,3) and (-4,- 4 3 ) lie on the opposite sides of the line L 5 x -6 y + k =0 and k is an integer. If the points (1,2) and (4,5) lie on the same side of the line L =0 , 2025 Full Straight Lines list All MHT CET PYQs