Mathematics MCQS for class 12 with Answers
For all values of a and b the line (a + b)x + (a – b)y = 2a + 3b passes through the fixed point
None of these
No such point
(5/2 , 1/2)
(5/2 , -1/2)
If A,B,C are three points such that slope of AB = slope of AC then:
Points are vertices of equilateral trianlge
Points are collinear
Points are vertices of right traingle
None of these
The distance of a point P(-3,-5) from y-axis is:
-3
5
3
-5
In a plane two mutually perpendicular lines are called:
Radii
Medians
Altitudes
Coordinate axes
The angle between the lines x/?3+y = 1 and x/?3 -y = 1 is:
45°
60°
90°
30°
If distance of a point P(x,y) from x-axis is 3 then:
y=3
x=y
x=3
2x=y
The two lines a1x+b1y+c1 = 0 and a2x+b2y+c2 intersect each other if:
a1a2 +b1b2 = 0
a1b2-b1a2 = 0
a1b1 -n1a2 ? 0
a1b2 +b1a2 = 0
If distance of a point P(x,y) from origin is 7 then:
y=7
x=7
?x2+y2 =7
x+y=7
The popint A(x1,y1) is above the line ax+by +c=0, b > 0
ax1 +by1 +c > 0
ax1 -by1 +c > 0
ax1 – by1+ c < 0
ac1+ by1+ c < 0
Intercept form of equation of a straight line:
x-y=ab
x/a – y/b =1
x+y=ab
x/a + y/b =1
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