Mathematics MCQS for class 12 with Answers
The point P(x1, y1) lies ——— the line ax + by + c = 0 if ax1 + by1 + c < 0
below
above
on
none of these
The point where the altitudes of a triangle meet each other is called:
orthocentre
circumcenter
In center
centroid
If x>0, y>0 then the point P(x,y) lies in the quadrant:
2nd
3rd
4th
1st
A linear equation in two variables represent a:
Stranght line
circle
ellipse
parabola
The point of concurrency of the angle bisectors of a triangle is called its
Centroid
In-centre
Circum-centre
Ortho centre
The equation of the straight line which passes through the point (1, -3) and makes an intercept on the y-axis twice as long as that on the x-axis is
2x + y +1 = 0
2x – y – 1 = 0
2x + y – 1 = 0
None of these
Equation of X-axis is
x = c
y = 0
y = c
x = 0
The pair of lines of homogenous second degree equation ax2+ 2hxy + by2= 0 are real and distinct, if
h2 =ab
h2> ab
None of these
h2< an
If a,b,c are in A.P., then the line ax + by + c = 0 will always pass through a fixed point whose co-ordinates are given by
(-1, -2)
(1, -2)
(1, 2)
(-1, 2)
The equation of a straight line which parallel to the line 3x – 2y + 5 = 0 and passes through (2, -1) is
3x + 2y – 8 = 0
3x – 2y + 8 = 0
3x – 2y – 8 = 0
3x + 2y + 8 = 0
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