Mathematics MCQS for class 12 with Answers Chapter 4

The perpendicular distance of the line 3x + 4y + 10 = 0 from origin is

0

1

2

3

The intersection of any two sides of a triangle gives

Vertex

None of these

Altitude

Median

The centroid of the triangle formed by the lines 4x + y = 16, y – x = 1 and x – 6y = 4 is

(1, 5/3)

(5/3 , 1)

(4, 5/2)

None of these

The point of intersection of lines x + y =2 and 2x – y = 1 is

(-1, 2)

(-1, -2)

(1, 2)

(1, 1)

The co-ordinate axis divide the plane into ___________ equal parts

4

2

3

1

IF a = 0 then the line as + by +c = 0 is parallel to:

y-axis

along y-axis

x-axis

None of these

Number of straight lines passing through one point is

Three

Finite

One

Infinite

If a point P(x,y) is on x-axis then

y=0

x=0

x must be +ve

x must be -ve

Let ABC be a triangle with A(-1, 5), B(0, 0) and C(2, 2) and let D be the middle point of BC. Then the equation of the perpendicular drawn from B to AB is

None of these

x + y = 0

x – y = 0

y – 2x = 0

The coordinates of centroid of triangle having certices (x1,y1), (x2, y3) are:

None of these

(x₁ – x₂/1 , y₁ -y₂/2)

(x₁ +x₂ +x₃/3 , y₁ +y₂+ y₃/3)

(x₁+x₂/2, y₁+y₂/2)