Exams › JEE Main › Maths
Statement 1: y = mx - 1/m is always a tangent to the parabola, y^2 = -4x for all non-zero values of m. Statement 2: Every tangent to the parabola, y^2 = -4x will meet its axis at a point whose abscissa is non-negative.
- Statement 1 is true, Statement 2 is true; Statement 2 is a correct explanation of Statement 1.
- Statement 1 is false, Statement 2 is true.
- Statement 1 is true, Statement 2 is false.
- Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1.
Correct answer: Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1.
Solution
Statement 1 is true because the line described will always intersect the parabola at exactly one point for any non-zero m, confirming it as a tangent. Statement 2 is also true since all tangents to the given parabola intersect the x-axis at non-negative x-values, but it does not explain why the line in Statement 1 is a tangent.
Related JEE Main Maths questions
- An ellipse has its two foci 10 units apart, and the length of its latus rectum is 15. If its axes are taken as the coordinate axes, which equation represents the ellipse?
- On the segment joining \(A(0,0)\) and \(B(3a,0)\), points \(P\) and \(Q\) are chosen such that \(AP=PQ=QB\). Three circles are then constructed with \(AP\), \(PQ\), and \(QB\) as their respective diameters. If a point \(S\) is such that the sum of the squares of the tangents drawn from \(S\) to these three circles is \(b^2\), then the locus of \(S\) is
- Find the coordinates of the midpoint of the chord cut by the circle \(x^2+y^2+4x-2y-3=0\) on the line \(y=x+2\).
- A hyperbola has a transverse axis of length \(2\sin\theta\) and is confocal with the ellipse \(3x^2+4y^2=12\). Its equation is
- Three points \(E\), \(F\), and \(G\) are chosen on the parabola \(y^2=4ax\) such that their y-coordinates form a geometric progression. The point where the tangents at \(E\) and \(G\) meet lies on the
- In the parabola \(x^2-2x+y-2=0\), let \(AB\) be a focal chord and \(S\) be the focus. If \(AS=l_1\), then what is the value of \(BS\)?
⚔️ Practice JEE Main Maths free + battle 1v1 →