The length of perpendicular from (3,1) to line 4x + 3y + 20 = 0 is.
6
7
3
8
The coordinates of foot of perpendicular from point (2,3) to the line y = 3x + 4 are.
The slope and y-intercept of the line y = √3x - 7 are
√3 and 7
3 and 49
√3 and -7
-√3 and 49
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
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
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
If lines 3x - y =2,5x + ay = 3 and 2x + y = 3 are concurrent ,then a =
2
-1
-2
The slope of the line which is perpendicular to the line joining the point (0, 0) and (-1, 1) is
1
1/2
If lines ax - 5y = 5 and 2x + y = 1 are perpendicular then the value of a is
5/2
2/5
The slope of a line parallel to a line whose slope is-3
-3
3/2
-3/2
