Mathematics MCQS for class 12 with Answers Chapter 4

if ax+by+c=0 shows a straight line then its slope m is:

#NAME?

c/a

b

a/b

If distance between (a,5) and (1,3) is ?2a+1 then a =

4

2

?2

1

The perpendicular distance of the line 12x + 5y=7 from origin is

13/7

13/7

13/1

13

Equation of a line parallel to Y-axis is

y = 0

x = 0

x = h

y = c

The equation of the line that has x-intercept -3 and is perpendicular to the line 3x = 4 – 5y is

3y = 15 – 5x

3y = 5x -15

3x = 15 + 5y

3y = 5x + 15

y = mx + c is the

Intercepts form

Slope intercept form

Two points form

Point slope form

Equation of a straight line passes through P(a,b) and parallel to x-axis is:

x=b

x+a=0

y=b

x=a

If x<0, y>0 then the point P(x,y) lies in the quadrant:

4th

1st

2nd

3rd

The point of intersection of the altitudes of a triangle is called

Orthocentre

in-centre

Circumference

Centroid

Location in the plane of the point P(x, y) for which x = 0 is

1st quadrant

y-axis

2nd quadrant

x-axis