Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
99 Percentile Qs Bank for JEE MainMathematicsParabola

The parametric equations of the parabola (y^2-8 x-4 y-12=0 ) are

Options

  1. A(x=2+2 t^2, y=-2+4 t )
  2. B(x=2+4 t, y=-2+2 t^2 )
  3. C(x=-2+2 t^2, y=2+4 t )
  4. D(x=-2+4 t, y=2+2 t^2 )

Correct answer

C. (x=-2+2 t^2, y=2+4 t )

Step-by-step solution

Given equation of parabola is ( aligned y^2-8 x-4 y-12 & =0 y^2-4 y & =8 x+12 (y-2)^2 & =8(x+2) 4 a & =8 a a & =2 aligned ) ( ) Parametric equations are ( aligned x+2 & =a t^2, y-2=2 a t x & =-2+2 t^2, y=2+4 t aligned ) ( ) Hence answer is (c).

Practice Parabola on Quantrex Academy →

More from Parabola

Let T be the tangent to the parabola y^2 = 16x at the point (64, 32) . Let L be the tangent to the same parabola at another point (x₁, y₁) on the parabola. If L and T are perpendic 2026Let O be the vertex of the parabola y^2=4x and its chords OP and OQ are perpendicular to each other. If the locus of the mid-point of the line segment PQ is a conic C, then the len 2026Let chord PQ of length 3 13 of the parabola y^2 = 12x be such that the ordinates of points P and Q are in the ratio 1:2 . If the chord PQ subtends an angle at the focus of the para 2026Let the point P be the vertex of the parabola y = x^2 - 6x + 12 . If a line passing through the point P intersects the circle x^2 + y^2 - 2x - 4y + 3 = 0 at the points R and S , th 2026Let the directrix of the parabola P: y^2 = 8x , cut x -axis at the point A . Let B( , ) , > 1 , be a point on P such that the slope of AB is 3/5 . If BC is a focal chord of P , the 2026Let A,B and C be the vertices of a variable right angled triangle inscribed in the parabola y^2=16x . Let the vertex B containing the right angle be (4,8) and the locus of the cent 2026Consider the parabola P : y^2 = 4kx and the ellipse E : x^2 a^2 + y^2 b^2 = 1 . Let the line segment joining the points of intersection of P and E , be their latus rectums. If the 2026Let the parabola y = x^2 + px + q passing through the point (1, -1) be such that the distance between its vertex and the x -axis is minimum. Then the value of p^2 + q^2 is: 2026 Full Parabola list All 99 Percentile Qs Bank for JEE Main PYQs