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If the lines 2x^(2)-5xy+3y^(2)+8x-9y+6=0...

If the lines `2x^(2)-5xy+3y^(2)+8x-9y+6=0` and `kx-y-5=0` are concurrent, then k=

A

`-9`

B

`9`

C

`-3`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
D
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NIKITA PUBLICATION-PAIR OF STRAIGHT LINES-MULTIPLE CHOICE QUESTIONS
  1. If (1, k) is the point of intersection of the lines given by 2x^(2)+5x...

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  2. If the lines x^(2)-y^(2)-2x+2y=0 and x+2y+k=0 are concurrent, then k=

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  3. If the lines 2x^(2)-5xy+3y^(2)+8x-9y+6=0 and kx-y-5=0 are concurrent, ...

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  4. The point of intersection of lines represented by 2x^(2)+4xy-2y^(2)+4x...

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  5. The distance btween the parallel lines 9x^2-6xy+y^2+18x-6y+8=0, is

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  6. The distance between the parallel lines given by x^(2)+2sqrt(2)xy+2y^(...

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  7. The distance between the pair of parallel lines x^2+2xy+y^2-8ax-8ay-9a...

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  8. If the distance between two parallel lines given by 2x^(2)+4xy+2y^(2)+...

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  9. The distance between the lines given by (x-2y)^(2)+k(x-2y)=0 is 3, the...

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  10. Select and write the correct answer from the alternatives in each of t...

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  11. If the equation ax^(2)+by^(2)+cx+xy=0 represents a pair of line, then

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  12. If the equation ay^(2)+bxy+ex+dy=0 represents a pair of line, then

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  13. If the equation Ax^(2)+2Bxy+Cy^(2)+Dx+Ey+F=0 represents a pair of line...

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  14. If kxy+10x+6y+4=0 represents a pair of lines, then k=

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  15. If the equation 4x^(2)+ky^(2)+8xy-9=0 represents a pair of line, then ...

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  16. If the equation kx^(2)-y^(2)+4x-y=0 represents a pair of line, then k=

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  17. If the equation 3x^(2)+3y^(2)+10xy+16y+k=0 represents a pair of line, ...

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  18. If the equation x^(2)-y^(2)-x-ky-2=0 represents a pair of line, then k...

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  19. If the equation 2x^(2)+4xy-2y^(2)+4x+8y+k=0 represents a pair of line...

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  20. If the equation x^(2)+3xy+2y^(2)+x-y+k=0 represents a pair of line, t...

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