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If the line x + y - 1 = 0 touches the pa...

If the line x + y - 1 = 0 touches the parabola `y^(2)=kx,` thn the value of k, is

A

4

B

-4

C

2

D

-2

Text Solution

Verified by Experts

The correct Answer is:
B
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FIITJEE-PARABOLA-ASSIGNMENT PROBLEMS (OBJECTIVE LEVEL - I)
  1. Find the coordinates of a point on the parabola y=x^2+7x+2 which is cl...

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  2. The angle between the tangents drawn form the point (3, 4) to the para...

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  3. If the line x + y - 1 = 0 touches the parabola y^(2)=kx, thn the value...

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  4. The curve described parametrically by x = t^2 + t +1, y = t^2 - t + 1 ...

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  5. Two parabolas y^(2)=4a(x-lamda(1))andx^(2)=4a(y-lamda(2)) always touch...

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  6. The angle between the tangents drawn form the point (3, 4) to the para...

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  7. Equation of common tangent of parabola y ^(2) = 8x and x ^(2) + y =0 i...

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  8. If the normals drawn at the end points of a variable chord PQ of the p...

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  9. If it is not possible to draw any tangent from the point (1/4, 1) to t...

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  10. The number of focal chord(s) of length 4/7 in the parabola 7y^(2)=8x i...

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  11. The ends of a line segment are P(1, 3) and Q(1,1), R is a point on th...

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  12. If (h,k) is a point on the axis of the parabola 2(x-1)^2 + 2(y-1)^2 = ...

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  13. If the tangents at two points (1, 2) and (3, 6) as a parabola intersec...

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  14. The tangent and normal at the point P(4,4) to the parabola, y^(2) = 4x...

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  15. The triangle formed by the tangent to the parabola y=x^(2) at the poin...

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  16. A parabola y^(2)=4axandx^(2)=4by intersect at two points. A circle is ...

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  17. Consider a circle with its centre lying on the focus of the parabola, ...

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  18. Show that the locus of a point that divides a chord of slope 2 of the ...

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  19. All chords of the parabola y^(2)=4x which subtend right angle at the o...

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  20. A variable chord PQ of the parabola y=4x^(2) subtends a right angle at...

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