The equation of x- axis is
x = 0
x = 0, y= 0
y = 0
x = 4
The length of the diameter of a circle with centre (2,1) and passing through the point (-2,1) is
4
8
4√5
2
Which of the following is a parallel line to 3 x + 4 y + 5 = 0?
4 x + 3 y + 6 = 0
3 x - 4 y + 6 = 0
4 x - 3 y + 9 = 0
3 x + 4 y + 6 = 0
The three straight lines a x +b y = c, b x + c y = a and c x + a y = b are collinear, if
b + c = a
c + a = b
a + b + c = 0
a + b = c
The y- intercept of the straight line 3 x + 2 y -1 = 0 is
3
1/2
-1/2
Equation of two parallel straight lines differ by
x term
y term
constant term
xy term
The slope of the straight line 2 x -3 y + 1 = 0 is
-2/3
-3/2
2/3
3/2
Which of the following is the equation of a straight line that is neither parallel nor perpendicular to the straight line given by x + y = 0.
y = x
y - x + 2 = 0
2 y = 4 x + 1
y + x + 2 = 0
If the straight lines a1 x+b1 y + c1 = 0 and a2 x + b2 y + c2 = 0 are perpendicular, then
a1a2 = -b1b2
The equation of a line through the point (1,2) whose distance from the point (3,1) has the greatest value, is
y = 2 x
y = x + 1
x + 2 y = 5
y = x + 7
