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If the slope of the line (x/a+y/b-1)+k...

If the slope of the line
`(x/a+y/b-1)+k(x/b+y/a-1)=0` is -1, then the value of k is

A

`-1`

B

`1`

C

0

D

2

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-STRAIGHT LINES-EXERCISE I
  1. Inclination of a vertical line is

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  2. The inclination of the line having slope (-1)/(sqrt(3)) is

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  3. If the slope of the line (x/a+y/b-1)+k(x/b+y/a-1)=0 is -1, then the ...

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  4. The number of different straight lines that are formed with A(2,3),B(3...

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  5. If points ( x , 0) , ( 0 , y) and ( 1 , 1) are collinear, then (1)/(x...

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  6. The image of (2,3) w.r.t y-axis is collinear with (-1,-1) and (-4, lam...

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  7. The medians AD and BE of the triangle with vertices A(0, b), B(0, 0) a...

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  8. If the straight lines y=4-3x, ay=x+10, 2y+bx+9=0 represent the three c...

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  9. The equation of the line passing through the points (ct(1),a/(t(1))),(...

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  10. The equation of the line passing through the point (2, -3) and paralle...

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  11. If (2, 1), (-1, -2), (3, 3) are midpoints of sides BC, CA, AB of Delta...

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  12. The equation of the line perpendicular to the line x = 3 and passing t...

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  13. The equation of the line passing through the (2,3) and perpendicular t...

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  14. If the equation (a(1)-a(2))x+(b(1)-b(2))y=c represents the perpendicul...

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  15. A(-1, 1), B(5, 3) are opposite vertices of a square. The equation of t...

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  16. In a rhombus ABCD the diagonals AC and BD intersect at the point (3, 4...

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  17. The equation of the straight line whose slope is 4 and y-intercept is ...

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  18. The equation of the straight line whose inclination is (pi)/4 and x-in...

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  19. The equation of a straight line passing through, (3,-1) and having int...

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  20. The intercepts a,b of a straight line on the co ordinate axes are give...

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