JEE MATHEMATICS MCQ: PARABOLA

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Statement 1:

y=m x-\frac{1}{m}

is always a tangent to the parabola,

y^{2}=-4 x

for all non-zero values of

m

.

Statement 2: Every tangent to the parabola,

y^{2}=-4 x

will meet its axis at a point whose abscissa is non-negative.

View answer and explanation

Correct option: D

Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1 .

Option D (Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1) is correct because both statements are true, but the second statement doesn't explain the first.

More Questions from PARABOLA

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The equation of a common tangent to the parabolas

y=x^2

and

y=-(x-2)^2

is A point

P

moves such that slope of one tangent drawn from it to parabola

y^2=16 x

is four times the slope of other tangent, then the length of latus rectum of the conic represented by locus of

P

, is Let

P,Q,R

be three points on parabola

{y^2} = 4x

and normal at

P

and

R

meet at

Q

, then the locus of the mid-point of the chord

PR

is a parabola whose vertex is at The tangents at the end points of any chord through

(1,0)

to the parabola

y^2+4 x=8

intersect The focus of the parabola

x^2=-16 y

is If

I

denotes the semi-latusrectum of the parabola

{y^2} = 4ax

and

SP

and

SQ

denote the segments of any focal chord

PQ,S

being the focus, then

SP,l

and

SQ

are in the relation