If lines x + 2ay + a = 0, x + 3by + b = 0 and x + 4cy + c = 0 are concurrent,then a,b,c, are in
A.P
G.P
H.P
None of these
Lines 15x - 18y + 1 = 0 , 12x +10 y - 3 = 0 and 6x + 66y - 11 = 0 are
Concurrent
Perpendicular
Parallel
The equation of lines passing through (3,2) and perpendicular to y = x is.
x - y = 5
x + y = 5
x + y = 1
x - y =1
The coordinates of foot of perpendicular from (2,3 ) to the line x + y -11 = 0 are
(-6,5)
(5,6)
(-5,6)
(6,5)
If x1,x2,x3 and y1,y2,y3, are in G.P .Where common ratio is r,then point P (x1,y1), Q (x2,y2), R (x3,y3) are on.
a straight line
an ellipse
a circle
Vertices of a triangle
If lines 3x - 4y - 13 = 0,8x - 11y - 33 = 0 and 2x - 3y + λ = 0 are concurrent , λ =
7
-7
5
-5
The equation of the line passing throgh the origin and parallel to the line 3x + 2y - 5 = 0
3x - 2y + 5 = 0
2x + 3y = 0
3x + 2y = 0
2x - 3y = 0
The equation of line which is perpendicular to x + y + 1 = 0 and passes through (1,2) is.
y - x + 1 = 0
y - x - 1 = 0
y - x + 2 = 0
y - x - 2 = 0
The slope of a line parallel to a line whose slope is-3
-3
3/2
3
-3/2
The line 5x - 2y + 4k = 0 is a tangent to 4x2 - y2 = 36, then k is
4/9
2/3
9/4
81/16
