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If the lines (x)/(3)+(y)/(4)=5 and 3x+ky...

If the lines `(x)/(3)+(y)/(4)=5` and `3x+ky=9` are perpendicular to each then the value of k is

A

`-4`

B

`-3`

C

`-1/2`

D

2

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The correct Answer is:
A
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ICSE-STRAIGHT LINES -Multiple Choice Questions
  1. The coordinates of the orthocentre of the triangle whose sides lie alo...

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  2. The coordinates of the circumcentre of the triangle whose vertices are...

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  3. If the lines (x)/(3)+(y)/(4)=5 and 3x+ky=9 are perpendicular to each t...

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  4. If the lines 2x+y-3=0,5x+ky-3=0 and 3x-y-2=0 are concurrent, then the ...

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  5. The equation of the line passing through (1,2) and perpendicular to x+...

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  6. If p is the length of perpendicular from the origin on the line x/a+y/...

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  7. The distance of the point P(1,-3) from the line 2y-3x=4 is (A) 13 ...

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  8. The coordinates of the foot of the perpendicular from the point (2,3) ...

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  9. If a vertex of a square is at the point (1,-1) and one of its sides li...

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  10. The equations of the lines which pass through the point (3,-2) and are...

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  11. If the line x/a+y/b=1 passes through the points (2,-3) and (4,-5) then...

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  12. The equations of lines passing through the point (1,0) and at distance...

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  13. The distance between the lines y=mx+c(1) and y=mx+c(2) is

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  14. Equations of diagonals of the square formed by the lines x=0,y=0,x=1 a...

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  15. The point (4,1) undergoes the following two successive transformations...

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  16. The equation ax+by+c=0 represents a straight line

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  17. The ratio in which the line 3x+4y+2=0 divides the distance between the...

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  18. The tngent of angle between the lines whose intercepts on the axes are...

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  19. The number of straight lines which are equally inclined to both the ax...

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  20. The circumcentre of the triangle formed by lines x=0,y=0 and x+y-1=0 i...

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