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MCQ for Full Syllabus Mathematics Straight Lines
Full Syllabus Mathematics students should refer to the following multiple-choice questions with answers for Straight Lines in Full Syllabus.
Straight Lines MCQ Questions Full Syllabus Mathematics with Answers
Question: The equation of the straight line joining the origin to the point of intersection of y – x + 7 = 0 and y + 2x – 2 = 0 is
- a) 4x + 3y = 0
- b) 3x – 4y = 0
- c) 3x + 4y = 0
- d) 4x – 3y = 0
Answer: 4x + 3y = 0
Question: The distance of point (– 2, 3) from the line x – y = 5 is
- a) 5√2
- b) 2√5
- c) 3√5
- d) 4√5
Answer: 5√2
Question: A straight line makes an angle of 135° with x-axis and cuts y-axis at a distance of – 5 from the origin. The equation of the line is
- a) x + y + 5 = 0
- b) x + y + 3 = 0
- c) 2x + y + 5 = 0
- d) x + 2y + 3 = 0
Answer: x + y + 5 = 0
Question: If the lines 3y + 4x = 1, y = x + 5 and 5y + bx = 3 are concurrent, Then value of b is equal to
- a) 6
- b) 1
- c) 3
- d) 0
Answer: 6
Question:
- a)
- b)
- c)
- d)
Answer:
Question: If p is the length of the perpendicular from the origin on the line whose intercepts on the axes are a and b then
- a) 1/p2=1/a2 + 1/b2
- b) 1/p2=1/a2 - 1/b2
- c) p2 = a2 + b2
- d) p2 = a2 - b2
Answer: 1/p2=1/a2 + 1/b2
Question: The equation to the line bisecting the join of(3, – 4) and (5, 2) and having its intercepts on the X-axis and the Y-axis is in the ratio 2 : 1, is
- a) x + 2y = 2
- b) x + y – 3 = 0
- c) 2x – y = 9
- d) 2x + y = 7
Answer: x + 2y = 2
Question: Which of the following lines is farthest from the origin?
- a) x + y – 2 = 0
- b) 2x – y + 3 = 0
- c) x – y + 1 = 0
- d) x + 2y – 2 = 0
Answer: x + y – 2 = 0
Question: A line passes through (2, 2) and is perpendicular to the line 3x + y = 3. Its Y – intercept is
- a) 4/3
- b) 4/3
- c) 1/3
- d) None of these
Answer: 4/3
Question: The equation of the locus of a point whose abscissa and ordinate are always equal is
- a) y – x = 0
- b) y + x – 1= 0
- c) y – x + 1 = 0
- d) y + x = 0
Answer: y – x = 0
Question: One of the equations of the lines passing through the point (3, – 2) and inclined at 60° to the line √3x+y = 1, is
- a) y + 2 = 0
- b) x + 2 = 0
- c) x – y =√ 3
- d) x + y = 0
Answer: y + 2 = 0
Question: The lines a1x + b1y + c1= 0 and a2x + b2y + c2 = 0 are perpendicular to each other if
- a) a1a2 + b1b2 = 0
- b) a1b1 – b1a2 = 0
- c) a1b1 + a2b2 = 0
- d) None of these
Answer: a1a2 + b1b2 = 0
Question: Three lines 3x – y = 2, 5x + ay = 3 and 2x + y = 3 are concurrent, then a is equal to
- a) – 2
- b) 2
- c) 3
- d) – 1
Answer: – 2
Question: The straight line whose sum of the intercepts on the axes is equal to half of the product of the intercepts, passes through the point
- a) (2, 2)
- b) (4, 4)
- c) (1, 1)
- d) (3, 3)
Answer: (2, 2)
Question: The equation of straight line through the intersection of the lines x – 2y = 1 and x + 3y = 2 and parallel to 3x + 4y = 0 is
- a) 3x + 4y – 5 = 0
- b) 3x + 4y + 5 = 0
- c) 3x + 4y – 10 = 0
- d) 3x + 4y + 6 = 0
Answer: 3x + 4y – 5 = 0
More Questions..........................
Question: The length of the perpendicular from the origin to a line is 7 and line makes an angle of 150° with the positive direction of y-axis, then the equation of the line is
- a) √3x + y = 14
- b) –x + 3y = 2
- c) √3x - y = 10 √2
- d) 4x + 5y = 7
Answer: √3x + y = 14
Question: A straight line through the point A (3, 4) is such that its intercept between the axes is bisected at A. Its equation is
- a) 4x + 3y = 24
- b) x + y = 7
- c) 3x – 4y + 7 = 0
- d) 3x + 4y = 25
Answer: 4x + 3y = 24
Question: The lines p(p2 +1)x – y + q = 0 and (p2 + 1)2x + (p2 + 1)y + 2q = 0 are perpendicular to a common line for
- a) exactly one value of p
- b) more than two values of p
- c) exactly two values of p
- d) all value of p
Answer: exactly one value of p
Question: If the coordinates of the points A and B be (3, 3) and (7, 6), then the length of the portion of the line AB intercepted between the axes is
- a) 5/4
- b) √10/4
- c) √13/4
- d) None of these
Answer: 5/4
Question: The distance of point (– 2, 3) from the line x – y = 5 is
- a) √5/2
- b) √3/5
- c) √2/5
- d) √5/3
Answer: √5/2
Question: The equation of a line through the point of intersection of the lines x – 3y + 1 = 0 and 2x + 5y – 9 = 0 and whose distance from the origin is √5 is
- a) 2x + y – 5 =0
- b) x + 2y – 7 = 0
- c) x – 3y + 6 = 0
- d) x – 3y + 6 = 0
Answer: 2x + y – 5 =0
Question: If the lines x = 2a + m, y =1 and y = mx + 2 are concurrent, then minimum positive value of a is
(1) a ≤ -1 (2) a ≥ 1
(3) -1 ≤ a ≤ 1 (4) a > 0
- a) 1 and 2 are correct
- b) 1 and 3 are correct
- c) 1, 2 and 3 are correct
- d) 2 and 4 are correct
Answer: 1 and 2 are correct
Question:
- a) 1, 2 and 3 are correct
- b) 2 and 4 are correct
- c) 1 and 2 are correct
- d) 1 and 3 are correct
Answer: 1, 2 and 3 are correct
Question: Constant term of the equation of a straight line passing through the point of intersection of x – y + 1 = 0 and 3x + y – 5 = 0 and perpendicular to one of them is (1) 8 (2) 5 (3) 7 (4) –1
- a) 2 and 4 are correct
- b) 1, 2 and 3 are correct
- c) 1 and 2 are correct
- d) 1 and 3 are correct
Answer: 2 and 4 are correct
Question:
Statement-1: The equation of the straight line which passes through the point (2, –3) and the point of the intersection of the lines x + y + 4 = 0 and 3x – y – 8 = 0 is 2x – y – 7 =
Statement-2: : Product of slopes of two perpendicular straight lines is -1.
- a) Statement -1 is False, Statement-2 is True.
- b) Statement -1 is True, Statement-2 is False
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Answer: Statement -1 is False, Statement-2 is True.
Question:
Statement-1: If a, b, c are in A.P. then every line of the form of ax + by + c = 0 where a, b, c are arbitrary constants pass through the point (1, –2)
Statement-2: Every line of the form of ax + by + c = 0 where a, b, c are arbitrary constants pass through a fixed point if their exist a linear relation between a, b & c.
- a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
- b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- c) Statement -1 is False, Statement-2 is True.
- d) Statement -1 is True, Statement-2 is False
Answer: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Question: Consider a line L : ax + by + c = 0 where ab > 0 and ac > 0.
Statement-1 : The line L cannot pass through first quadrant.
Statement-2 : Slope and x-intercept of the line are negative
- a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
- b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- c) Statement -1 is False, Statement-2 is True.
- d) Statement -1 is True, Statement-2 is False.
Answer: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Question:
- a) x2 + y2 = a2
- b)
- c) x2 + y2 = 2a2
- d) None of these
Answer: x2 + y2 = a2
Question: The pair of lines represented by 3ax2 + 5xy + (a2 – 2)y2 = 0 are perpendicular to each other for
- a) two values of a
- b) for one value of a
- c) three values of a
- d) None of these
Answer: two values of a
Question: If the sum of the slopes of the lines given by x2 – 2cxy – 7y2 = 0 is four times their product, then the value of c =
- a) 2
- b) –2
- c) –1
- d) 1
Answer: 2
Question: If one of the lines given by 6x2 – xy + 4cy2 = 0 is 3x + 4y = 0, then c equals
- a) –3
- b) 3
- c) –1
- d) 1
Answer: –3
Question:
- a)
- b)
- c)
- d) None of these
Answer:
Question: The condition that the pair of straight lines joining the origin to the intersections of the line y = mx + c and the circle x2 + y2 = a2 may be at right angles is
- a) 2c2 = a2 (1 + m2)
- b) 2a2 = c2 (1 – m2)
- c) a2 = c2 (1 + m2)
- d) None of these
Answer: 2c2 = a2 (1 + m2)
Question: If the pair of straight lines x2 - 2 pxy - y2 = 0 and x2 - 2qxy - y2 = 0 be such that each pair bisects the angle between the other pair, then
- a) pq = –1
- b) p = –q
- c) p = q
- d) pq = 1.
Answer: pq = –1
Question: The bisector of the acute angle formed between the lines 4x – 3y + 7 = 0 and 3x – 4y + 14 = 0 has the equation
- a) x – y + 3 = 0
- b) x + y +3 = 0
- c) x – y – 3 = 0
- d) 3x + y – 7 = 0
Answer: x – y + 3 = 0
Question:
- a) 8
- b) 4
- c) 6
- d) 2
Answer: 8
Question: The gradient of one of the lines x2 + hxy + 2y2 = 0 is twice that of the other, then h is equal to
- a) ± 3
- b) ± 2
- c) ± 1
- d) None of these
Answer: ± 3
Question: If ax2 – y2 + 4x – y = 0 represents a pair of lines, then a is equal to
- a) 16
- b) – 4
- c) – 16
- d) 4
Answer: 16
Question: The angle between the pair of straight lines.
- a) None of these
- b)
- c)
- d)
Answer: None of these
Question: The pair of straight lines perpendicular to the pair of lines ax2 + 2hxy + by2 = 0 has the equation
- a) bx2 – 2hxy + ay2 = 0
- b) ay2 + 2hxy + bx2 = 0
- c) ax2 – 2hxy + by2 = 0
- d) bx2 + 2hxy + ay2 = 0
Answer: bx2 – 2hxy + ay2 = 0
Question: If equation of the base of an equilateral triangle is x + y = 2 and its vertex is (2, – 1) then the length of its side is
- a)
- b)
- c)
- d) None of these
Answer:
Question: If slope of one of the lines ax2 + 2hxy + by2 = 0 is twice that of the other, then
- a) 8h2 = 9 ab
- b) h2 = ab
- c) h = a + b
- d) 9h2 = 8ab
Answer: 8h2 = 9 ab
Question:
- a)
- b)
- c)
- d) None of these
Answer:
Question: The equation of lines passing through the origin and parallel to the lines y = m1x + c1 and y = m2x + c2 is
- a) m1m2x2 – (m1 + m2)xy + y2 = 0
- b) m1m2x2 + (m1 + m2)xy + y2 = 0
- c) Both
- d) None of these
Answer: m1m2x2 – (m1 + m2)xy + y2 = 0
Question: A point moves so that square of its distance from the point (3, – 2) is numerically equal to its distance from the line 5x – 12y = 13. The equation of the locus of the point is
- a) 13x2 + 13y2 – 83x + 64y + 182 = 0
- b) x2 + y2 – 11x + 16y + 26 = 0
- c) x2 + y2 – 11x + 16y = 0
- d) None of these
Answer: 13x2 + 13y2 – 83x + 64y + 182 = 0
Question: The joint equation of the straight lines x + y = 1 and x – y = 4 is
- a) (x + y – 1) (x – y – 4) = 0
- b) (x + y + 1) (x – y + 4) = 0
- c) x2 – y2 = 4
- d) None of these
Answer: (x + y – 1) (x – y – 4) = 0
Question: If the point (2, –3) lies on kx2 – 3y2 + 2x + y – 2 = 0, then k is equal to
- a) 7
- b) 16
- c) 12
- d) /7
Answer: 7
Question:
(1) 3 (2) 5
(3) lies between 1 and 4 (4) 6
- a) 1 and 3 are correct
- b) 1 and 2 are correct
- c) 1, 2 and 3 are correct
- d) 2 and 4 are correct
Answer: 1 and 3 are correct
Question:
(1) [0, 4] (2) [–2, 2]
(3) (2, 5) (4) (3, 6)
- a) 1 and 2 are correct
- b) 1 and 3 are correct
- c) 1, 2 and 3 are correct
- d) 2 and 4 are correct
Answer: 1 and 2 are correct
Question: The lines L1 and L2 are denoted by 3x2 + 10xy + 8y2 + 14x + 22y + 15 = 0 intersect at the point P and have gradient m1 and m2 respectively. The acute angle between them is q. Which of the following relations hold good –
(1) m1 m2 = 3/8
(2) acute angle between L1 and L2 is sin–1(-2/5√5)
(3) sum of the abscissa and ordinate of the point P is –1
(4) m1 + m2 = 5/4
- a) 1, 2 and 3 are correct
- b) 2 and 4 are correct
- c) 1 and 2 are correct
- d) 1 and 3 are correct
Answer: 1, 2 and 3 are correct
Question:
Equation of side BC is –
- a) 7x + 3y + 4 = 0
- b) 7x – 3y – 4 = 0
- c) 7x + 3y – 4 = 0
- d) 7x – 3y + 4 = 0
Answer: 7x + 3y + 4 = 0
Question:
Coordinates of vertex B are –
- a)
- b)
- c)
- d) (1, 1)
Answer:
Question:
Equation of side AB is –
- a) 3x + 7y = 24
- b) 3x + 7y + 24 = 0
- c) 13x + 7y + 8 = 0
- d) 13x – 7y + 8 = 0
Answer: 3x + 7y = 24
Question:
Statement-1 : Let the lines 2x + 3y + 19 = 0 and 9x + 6y – 17 = 0 cut the x-axis in A, B and y axis in C, D. Then points A, B, C, D are concyclic.
Statement-2 : Since OA . OB = OC . OD where O is origin therefore A, B, C, D points are concyclic.
- a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
- b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- c) Statement-1 is False, Statement-2 is True.
- d) Statement-1 is True, Statement-2 is False.
Answer: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Question:
- a) Statement-1 is True, Statement-2 is False.
- b) Statement-1 is False, Statement-2 is True.
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Answer: Statement-1 is True, Statement-2 is False.
Question: Consider the family of straight lines
Statement-1 : All the lines of the given family pass through the point (3, –2).
Statement-2 : All the lines of the given family pass through a fixed point.
- a) Statement-1 is False, Statement-2 is True.
- b) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
- c) Statement-1 is True, Statement-2 is False.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
Answer: Statement-1 is False, Statement-2 is True.
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MCQs for Straight Lines Mathematics Full Syllabus
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