If line passing through (4,3) and (2,k) is perpendicular to y = 2x + 3 then k =
-1
1
-4
4
The distance between points (6,-8), (2,-5) is
5
8
13
7
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 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
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 length of perpendicular from (3,1) to line 4x + 3y + 20 = 0 is.
6
3
If P is the length of perpendicular from origin to the line which intercepts a and b on axes , then.
a2 + b2 = p2
a2 + b2 = 1/p2
1/a2 + 1/b2 = 2/p2
1/a2 + 1/b2 = 1/p2
The slope of the line which is perpendicular to the line joining the point (0, 0) and (-1, 1) is
1/2
-2
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 P (a,b) lies on 3x + 2y = 13 and point Q (b,a) lies on ax - y = 5 then the equation of PQ is
x - y = 5
x + y = 5
x + y = -5
x - y = -5
