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If the line x-1 = 0 is the directrix of ...

If the line x-1 = 0 is the directrix of the para bola `y^2 - kx + 8 = 0, k!=0` and the parabola intersect the circle `y^2 + x^2 = 4` in two real distinct points, then the value of k is

A

`-4`

B

-8

C

4

D

2

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • The line y=mx+c intersects the circle x^(2)+y^(2)=a^(2) in two distinct real points if

    A
    `-a sqrt(a+m^(2)) lt c`
    B
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    C
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    D
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    4
    B
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    D
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