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The straight lines x+2y-9=0,3x+5y-5=0 , ...

The straight lines `x+2y-9=0,3x+5y-5=0` , and `a x+b y-1=0` are concurrent, if the straight line `35 x-22 y+1=0` passes through the point `(a , b)` (b) `(b ,a)` `(-a ,-b)` (d) none of these

A

(a,b)

B

(b,a)

C

(a,-b)

D

(-a,b)

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DISHA PUBLICATION-STRAIGHT LINES AND PAIR OF STRAIGHT LINES-EXERCISE 1: CONCEPT BUILDER
  1. Let A(h, k), B(1, 1) and C(2, 1) be the vertices of a right angled ...

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  2. All points lying inside the triangle formed by the points (1. 3). (5, ...

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  3. The straight lines x+2y-9=0,3x+5y-5=0 , and a x+b y-1=0 are concurrent...

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  4. Let A(2,-3)a n dB(-2,1) be vertices of a triangle A B Cdot If the cent...

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  5. A rectangle A B C D , where A-=(0,0),B-=(4,0),C-=(4,2)D-=(0,2) , under...

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  6. The ends of the base of an isosceles triangle are at (2a, 0)and (0, a)...

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  7. The point (x,y) lies on the line with slope m and passes through the f...

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  8. The two linesax+by=cand a'x+b'y=c' are perpendicular if

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  9. The slopes of the lines which make an angle 45^@ with the line 3x-y=-5...

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  10. The lines x+2y-5=0, 2x-3y+4=0,6x+4y-13=0

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  11. Two points P(a,0) and Q(-a,0) are given, R is a variable on one side o...

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  12. Consider the equation sqrt(3)x+y-8=0 I. Normal form of the given equ...

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  13. The diagonals of the parallelogram whose sides are lx+my+n = 0,lx+ my+...

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  14. The equation of a straight line which cuts off an intercept of 5 units...

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  15. A ray of light passsing through a point (1,2) is reflected on the x-ax...

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  16. The inclination of the line x-y+3=0 with the positive direction of x-a...

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  17. The line parallel to the x-axis and passing through the intersection o...

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  18. A straight line l with negative slope passes through (8,2) and cuts th...

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  19. If (-4,5) is a vertex of a square and one of its diagonal is 7x-y+8-0....

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  20. What is the equation of the line mid way between the lines 3x-45y+12=0...

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