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JEE Questions for Maths Straight Line And Pair Of Straight Lines Quiz 3 - MCQExams.com
JEE
Maths
Straight Line And Pair Of Straight Lines
Quiz 3
The equation of the straight line perpendicular to 5
x
- 2y = 7 and passing through the point of intersection of the lines 2
x
+ 3y = 1 and 3
x
+ 4y = 6, is
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2x + 5y + 17 = 0
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2x + 5y - 17 = 0
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2x - 5y + 17 = 0
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2x - 5y = 17
If PM is the perpendicular from P(2,onto the line
x
+ y = 3, then the coordinates of M are
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(2, 1)
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(-1, 4)
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(1, 2)
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(4, - 1)
The equation of line bisecting perpendicularly the segment joining the points (- 4,and (8, 8), is
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y = 7
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6x + y - 19 = 0
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x + 2y - 7 = 0
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6x + 2y - 19 = 0
If the slopes of one of the lines given by a
x
2
+ 2h
x
y + by
2
= 0 is 5 times the other, then
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5h2 = 9ab
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5h2 = ab
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h2 = ab
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9h2 = 5ab
Two of the lines represented by the equation ay
4
+ b
x
y
3
+ c
x
2
y
2
+ d
x
3
y + e
x
4
= 0 will be perpendicular then
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(b + d) (ad + be) + (e - a)2 (a + c + e) = 0
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(b + d) (ad + be) + (e + a)2 (a + c + e) = 0
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(b - d) (ad - be) + (e - a)2 (a + c + e) = 0
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(b - d) (ad - be) + (e + a)2 (a + c + e) = 0
The points (1, 1), (- 5,and (13, λ) lie on the same straight line, if λ is equal to
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7
0%
- 7
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± 7
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0
A straight line passes through the points (5,and (0, 3). The length of perpendicular from the point (4,on the line is
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0%
15/√34
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√17/2
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17/2
0%
If p is the length of the perpendicular from the origin to the line, whose intercepts with the coordinate axes are 1/3 and 1/4 then the value of p is
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0%
3/4
0%
1/12
0%
5
0%
12
0%
1/5
If p and q are respectively the perpendiculars from the origin upon the straight lines, whose equations are
x
sec θ + y, θ = a and
x
cosθ - y sin θ = a cos 2θ then 4p
2
+ q
2
is equal to
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0%
5a2
0%
4a2
0%
3a2
0%
2a2
0%
a2
If any point P is at the equal distances from points A (a + b, a - b) and B (a - b, a + b), then locus of a point is
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x - y = 0
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ax + by = 0
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bx + ay = 0
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x + y = 0
For a > b > c > 0, if the distance between (1,and the point of intersection of the lines a
x
+ by + c = 0 and b
x
+ ay + c = 0 is less than 2√2. Then,
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a + b - c > 0
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a - b + c < 0
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a - b + c > 0
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a + b - c < 0
The equation of the perpendicular bisector of the line segment joining A (- 2,and B (6, -is
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x - y = - 1
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x - y = 3
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x + y = 3
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x + y = 1
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x + y = - 1
The equation of second degree
x
2
+ 2√2
x
y + 2 y
2
+ 4
x
+ 4√2y + 1 = 0 represents a pair of straight lines. The distance between them is
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0%
2√3
0%
2√5
0%
2
0%
02010
The line L given by
x
/5 + y/b = 1 passes through the point (13, 32). The line k is parallel to L and has the equation
x
/c + y/3 = 1. Then, the distance between L and K is
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0%
23/√15
0%
√17
0%
17/√15
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23/√17
The equation of one of the lines parallel to 4
x
- 3y = 5 and at a unit distance from the point (-1, -is
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0%
3x + 4y - 3 = 0
0%
3x + 4y + 3 = 0
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4x - 3y + 3 = 0
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4x - 3y - 3 = 0
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4x - 3y - 4 = 0
A straight line through the origin O meets the parallel lines 4x + 2y = 9 and 2x + y + 6 = 0 at points P and Q respectively. Then the point O divides the segemnt PQ in the ratio
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0%
1 : 2
0%
3 : 4
0%
2 : 1
0%
4 : 3
A line through the point A (2,which makes an angle of 30° with the positive direction of X-axis is rotated about A in clockwise direction through an angle of 15°. Then, the equation of the straight line in the new position is
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(2 - √x + y + 4 + 2 √3 = 0
0%
(2 - √3)x - y - 4 + 2 √ = 0
0%
(2 - √3)x + y + 4 + 2 √3 = 0
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(2 - √3)x + y + 4 + 2 √3 = 0
The number of points on the line
x
+ y = 4, which are unit distance apart from the line 2
x
+ 2y = 5, is
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0%
0
0%
1
0%
2
0%
∞
The coordinates of the foot of perpendicular from (a,on the line y = m
x
+ a/m are
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0%
0%
2)
0%
0%
The distance between the pair of lines represented by the equations
x
2
- 6
x
y + 9y
2
+ 3
x
- 9y - 4 = 0 is
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0%
15/√10
0%
1/2
0%
0%
1/√10
The coordinates of the foot of the perpendicular drawn from the point (3, - 4). Then, the equations of the line is
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0%
(9/5, 17/5)
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(1, 5)
0%
(-5, 1)
0%
(1, - 5)
If the foot of the perpendicular from the origin to a straight line is at the point (3, -4 ). Then, the equation of the line is
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3x - 4y = 25
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3x - 4y + 25 = 0
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4x + 3y - 25 = 0
0%
4x + 3y + 25 = 0
The distance between the lines 3
x
+ 4y = 9 and 6
x
+ 8y = 15 is
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0%
3/2
0%
3/10
0%
6
0%
None of these
The distance between the pair of parallel lines
x
2
+ 2
x
y + y
2
- 8a
x
- 8ay - 9a
2
= 0 is
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0%
2√5 a
0%
√10 a
0%
10a
0%
5√2 a
If the equation of base of an equilateral triangle is 2
x
- y = 1 and the vertex (-1, 2), then the length of the side of the triangle is
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0%
0%
2/√15
0%
0%
0%
√5
The length of perpendicular from the point (a cos α, a sin α) upon the straight line y =
x
tan α + c (where, c >is
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0%
c
0%
c sin2 α
0%
c cos α
0%
c sec2 α
The product of the perpendicular distances from the origin on the pair of straight lines 12
x
2
+ 25
x
y + 12y
2
+ 10
x
+ 11y + 2 = 0 is
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0%
1/25
0%
2/25
0%
3/25
0%
4/25
The slopes of the lines, which make an angle 45
o
with the line 3
x
- y = -5 are
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0%
1, - 1
0%
1/2, - 1
0%
1, 1/2
0%
2, - 1/2
0%
-2, 1/2
The locus of the orthocentre of the triangle formed by the lines (1 + p)
x
- py + p(1 + p) = 0, (1 + p)
x
- qy + q (1 + q) = 0 and y = 0, where p ≠ q, is
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0%
a hyperbola
0%
a parabola
0%
an ellipse
0%
a straight line
The lines p(p
2
+ 1)
x
- y + q = 0 and (p
2
+ 1)
2
x
+ (p
2
+ 1)y + 2q = -0 are perpendicular to a common line for
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0%
exactly one value of p
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exactly two values of p
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more than two values of p
0%
no value of p
All chords of the curve 3
x
2
- y
2
- 2
x
+ 4y = 0 which subtend a right angle at the origin, pass through the fixed point
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0%
(1, 2)
0%
(1, - 2)
0%
(-1, 2)
0%
(-1, -2)
If the line p
x
2
- q
x
y - y
2
= 0 makes the angles α and β with X - axis, then the value of tan (α + β) is
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0%
0%
2)
0%
0%
If θ is the angle between the lines a
x
2
+ 2b
x
y + by
2
= 0, then angle between
x
2
+ 2
x
y sec θ + y
2
= 0 is
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0%
θ
0%
2θ
0%
θ/2
0%
3θ
If the lines y = 3
x
+ 1 and 2y =
x
+ 3 are equally inclined to the line y = m
x
+ 4, (1/2 < m < 3), then the values of m is
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0%
0%
2)
0%
0%
The pair of lines joining origin to the points of intersection of the two curves a
x
2
+ 2h
x
y + by
2
+ 2g
x
= 0 and a\'
x
2
2h\'
x
y + b\' y
2
+ 2g\'
x
= 0 will be at right angles, if
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0%
(a' + b' ) g' = (a + b) g
0%
(a + b ) g' = (a' + b') g
0%
h2 - ab = h'2 - a'b'
0%
a + b + h2 = a' + b' + h'2
A line passes through point (2,and perpendicular to the line 3
x
+ y = 3. Then, y - intercept is
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0%
2
0%
5/3
0%
4/3
0%
3/4
The lines (a + 2b)
x
+ (a - 3b)y = a - b for different values of a and b pass through the fixed point, whose coordinates are
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0%
(2/5, 2/5)
0%
(3/5, 3/5)
0%
(1/5, 1/5)
0%
(3/5, 2/5)
0%
((2/5, 3/
A line passes through the point of intersection of the lines 100
x
+ 50y - 1 = 0 and 75
x
+ 25y + 3 = 0 and makes equal intercept on the axes. Its equation is
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0%
25x + 25y - 1 = 0
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5x - 5y + 3 = 0
0%
25x + 25y - 4 = 0
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25x - 25y + 6 = 0
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5x - 5y + 7 = 0
The acute angle between the lines joining the origin to the points of intersection of the line √3
x
+ y = 2 and the circle
x
2
+ y
2
= 4 is
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0%
π/2
0%
π/3
0%
π/4
0%
π/6
0%
π/12
The angle between the straight lines
x
- y √3 = 5 and √3
x
+ y = 7 is
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0%
90o
0%
60o
0%
75o
0%
30o
The angle between the pair of straight lines formed by joining the points of intersection of
x
2
+ y
2
= 4 and y = 3
x
+ c to the origin is a right angle. Then, C
2
is equal to
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0%
20
0%
13
0%
1/5
0%
5
The angle between the pair of lines (
x
2
+ y
2
) sin
2
α = (
x
cos θ - y sin θ)
2
is
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0%
θ
0%
2θ
0%
α
0%
2α
If (a, a
2
) falls inside the angle made by the lines y =
x
/2,
x
> 0 and y = 3
x
,
x
> 0, then a belongs to
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0%
(3, ∞)
0%
(1/2, 3)
0%
(-3, - (1/2))
0%
(0, 1/2)
The angle between the lines represented by the equation 2
x
2
+ 3
x
y - 5y
2
= 0, is
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0%
π/3
0%
π/2
0%
tan-1 |12/5|
0%
tan-1 |7/3|
The angle between the lines √3
x
- y - 2 = 0 and
x
- √3y + 1 = 0 is
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0%
90o
0%
60o
0%
45o
0%
15o
0%
30o
The angle between the lines in
x
2
-
x
y - 6y
2
- 7
x
+ 31y - 18 = 0 is
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0%
60o
0%
45o
0%
30o
0%
90o
The angle between the pair of straight lines y
2
sin
2
θ -
x
y sin
2
θ +
x
2
(cos
2
θ -= 0 is
Report Question
0%
π/3
0%
π/4
0%
π/6
0%
π/2
0%
π
Let P = (- 1, 0), 0 = (0,and Q = (3, 3√be three points. Then, the equation of the bisector of the ∠POQ is
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y = √3x
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√3y = x
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y = - √3x
0%
√3y = -x
If two pairs of lines
x
2
- 2m
x
y - y
2
= 0 and
x
2
- 2n
x
y - y
2
= 0 are such that one of them represents the bisector of the angles between the other, then
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0%
mn = 1
0%
m + n = mn
0%
mn = - 1
0%
m - n = mn
Report Question
0%
Statement I is correct, Statement II is correct; Statement II is not a correct explanation for Statement I
0%
Statement I is correct, Statement II is incorrect
0%
Statement I is incorrect, Statement II is correct
0%
Statement I is correct, Statement II is correct; Statement II is a correct explanation for Statement I
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