Refer to CBSE Class 9 Maths Linear Equations in Two Variables MCQs provided below available for download in Pdf. The MCQ Questions for Class 9 Mathematics with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 4 Linear Equations in Two Variables are an important part of exams for Class 9 Mathematics and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 9 Mathematics and also download more latest study material for all subjects
MCQ for Class 9 Mathematics Chapter 4 Linear Equations in Two Variables
Class 9 Mathematics students should refer to the following multiple-choice questions with answers for Chapter 4 Linear Equations in Two Variables in Class 9.
Chapter 4 Linear Equations in Two Variables MCQ Questions Class 9 Mathematics with Answers
Question. Which equation satisfies the data given in the table?
X | –1 | 0 | 1 | 2 |
Y | –3 | –1 | 1 | 3 |
(A) y = x – 2
(B) y = 2x – 1
(C) y = 3x – 3
(D) y = x + 1
Answer : B
Question. How many linear equations in x and y can be satisfied by x = 2, y = 3?
(A) Only one
(B) Only two
(C) Infinitely many
(D) None of these
Answer : C
Question. If (2, 0) is a solution of the linear equation 2x + 3y = k, then the value of k is ______.
(A) 4
(B) 6
(C) 5
(D) 2
Answer : A
Question. If the graph of the equation 4x + 3y = 12 cuts the coordinate axes at A and B, then hypotenuse of right triangle AOB is of length
(A) 4 units
(B) 3 units
(C) 5 units
(D) None of these
Answer : C
Question. ax + by + c = 0 does not represent an equation of line, if ______.
(A) a = c = 0, b ≠ 0
(B) b = c = 0, a ≠ 0
(C) a = b = 0
(D) c = 0, a ≠ 0, b ≠ 0
Answer : C
Question. A straight line parallel to the y-axis has equation ______.
(A) x = a
(B) y = a
(C) y = x
(D) y = –x
Answer : A
Question. A and B are friends. A is elder to B by 5 years. B’s sister C is half the age of B while A’s father D is 8 years older than twice the age of B. If the present age of D is 48 years, find the present ages of A, B and C respectively.
(A) 50 years, 25 years, 20 years
(B) 40 years, 20 years, 15 years
(C) 20 years, 15 years, 10 years
(D) 25 years, 20 years, 10 years
Answer : D
Question. Mayank and Sujata, two students of class 9th together contributed ₹1000 to PPM relief fund.
(i) Find the linear equation satisfying the data.
(ii) If Sujata contributed ₹475, then how (₹) much Mayank contributed?
(i) (ii)
(A) 2x + y = 1000 575
(B) x + y = 1000 525
(C) 0⋅x + 1⋅y = 100 575
(D) 2x + 2y = 500 525
Answer : B
Question. The graph of the linear equation 2x + 3y = 6 is a line which meets the x-axis at the point
(A) (0, 2)
(B) (2, 0)
(C) (3, 0)
(D) (0, 3)
Answer : C
Question. In the rectangular coordinate system given below, the shaded region is bounded by two straight lines. Which of the following is not an equation of one of the boundary lines ?
(A) x = 0
(B) x = 1
(C) x – y = 0
(D) x + 2y = 2
Answer : C
Question. Point (4, 1) lies on the line ______.
(A) x + 2y = 5
(B) 2x + y = – 6
(C) x + 2y = 6
(D) x + y = 16
Answer : C
Question. The equation x = 7 in two variables, can be written as ______.
(A) 1⋅x + 1⋅y = 7
(B) 1⋅x + 0⋅y = 7
(C) 0⋅x + 1⋅y = 7
(D) None of these
Answer : B
Question. If ∠A and ∠B are complementary angles and m∠A is x, which equation can be used to find m ∠B which is denoted by y?
(A) y = (90° + x)
(B) y = (90° – x)
(C) y = (180° – x)
(D) y = (x + 180°)
Answer : B
Question. The cost of a note book is twice the cost of a pen. If the cost of a note book is ₹ x and that of a pen is ₹ y, then a linear equation in two variables to represent the given condition is ______.
(A) x + 2y = 0
(B) x – 2y = 0
(C) 2x + y = 0
(D) 2x – y = 0
Answer : B
Question. A part of monthly expenses of a family on milk is fixed which is ₹700 and remaining varies with quantity of milk taken extra at the rate of ₹25 per litre. Taking quantity of milk required extra as x litres and total expenditure on milk as ₹y, write a linear equation from the above information.
(A) –25 x + y = 700
(B) 20 x + y = 500
(C) 20 x + 10y = 300
(D) x + 25 y = 900
Answer : A
Question. The equations representing the given graph is ______.
(A) 7x + 2y = 11; y – 2x = 3
(B) 2x + 7y = 11; 5x + (35y/2) = 25
(C) 3x – 7y = 10; 8y – 6x = 4
(D) 3x – 4y = 1; 8y – 6x = 4
Answer : D
Question. If the temperature of a liquid can be measured in kelvin units as x°K or in Fahrenheit units as y°F. The relation between the two systems of measurement of temperature is given by the linear equation.
y = 9/5(x - 273) + 32
(i) Find the temperature of the liquid in Fahrenheit if the temperature of the liquid is 313° K.
(ii) If the temperature is 158° F, then find the temperature in Kelvin.
(i) (ii)
(A) 112° F 150° K
(B) 112° F 243° K
(C) 104° F 343° K
(D) 104° F 150° K
Answer : C
Question. Fill in the blanks.
(i) A linear equation in two variables has P solutions(s).
(ii) The graph of Q line has an equation of the form x = k.
(iii) A line parallel to x-axis cuts the y-axis at R point(s).
(iv) Distance between the graph of equation y = 2 and y = –4 is S units.
P Q R S
(A) Zero Horizontal Zero 2
(B) Infinite Horizontal Two 6
(C) Infinite Vertical One 6
(D) Zero Vertical One 2
Answer : C
Question. The point (a, – a) always lies on ______.
(A) x + y = 0
(B) x – y = 0
(C) x = – a
(D) y = a
Answer : A
Question. The equation of the line whose graph passes through the origin is ______.
(A) 4x + 2y = – 1
(B) x + y = 1
(C) 8x + 7y = 0
(D) 8x – 1 = 4y
Answer : C
Question. Rakesh has ₹x more than Mohan has, and together they have a total of ₹y. Which of the following options represents the amount of money that Mohan has ?
(A) ₹ (y−x/2)
(B) ₹ (y−x/2)
(C) ₹ (y - x/2)
(D) ₹ (2y – x)
Answer : A
Question. The graph of y = 6 is a line
(A) Parallel to x-axis at a distance of 6 units from the origin.
(B) Parallel to y-axis at a distance of 6 units from the origin.
(C) Making an intercept of 6 units on the x-axis.
(D) Making an intercept of 6 units on both the axes.
Answer : A
Question. If the point (3, 4) lies on the graph of the equation 3y = ax + 7, then the value of a is ______.
(A) 2/3
(B) 1
(C) 4/3
(D) 5/3
Answer : D
Question. Which of the following is the graph of x + y = 6 and x – y = 2?
Answer : A
Question. Match the linear equations in column-I with their solutions in column-II.
Column-I Column-II
(P) 4x + 3y = 24 (i) (2, –3)
(Q) x/2 – y/3 = 2 (ii) (2, 3)
(R) 3x + 5y = 15 (iii) (3, 4)
(S) x - y/3 = y − 3 (iv) (9/3, 6/5)
(A) (P) → (ii), (Q) → (i), (R) → (iv), (S) → (iii)
(B) (P) → (iii), (Q) → (i), (R) → (iv), (S) → (ii)
(C) (P) → (ii), (Q) → (iv), (R) → (i), (S) → (iii)
(D) (P) → (iii), (Q) → (iv), (R) → (i), (S) → (ii)
Answer : B
Question. The solution of the equation x – 2y = 4 is:
(a) (0, 2)
(b) (4, 0)
(c) (1, 1)
(d) (2, 0)
Question. In graphical representation of y = – 4, line is:
(a) parallel to x – axis
(b) parallel to y – axis
(c) passes through origin
(d) None of these.
Question. Solution of the equation 2x + 1 = x + 3 is:
(a) 3
(b) 1
(c) 2
(d) 4
Question. The graph of line x – y = 0 passes through:
(a) (2, 3)
(b) (3, 4)
(c) (5, 6)
(d) (0, 0)
Question. The graph of line x + y = 7 intersect the x-axis at:
(a) (7, 0)
(b) (0, 7)
(c) (–7, 0)
(d) (0, –7)
Question. Point (4, 1) lies on the line:
(a) x + 2y = 5
(b) x + 2y = –6
(c) x + 2y = 6
(d) x + 2y = 16
Question. Graph of x = 2 is a line:
(a) parallel to x – axis
(b) parallel to y – axis
(c) passes through origin
(d) None of these.
Question. The linear equation 2x – 5y = 7 has
(a) a unique solution
(b) two solutions
(c) infinitely many solutions
(d) no solutions.
Question. The equation 2x + 5y = 7 has a unique solution, if x, y are:
(a) natural numbers
(b) positive numbers
(c) real numbers
(d) rational numbers.
Question. If (2, 0) is a solution of the linear equation 2x + 3y = k, then the value of k is
(a) 4
(b) 6
(c) 5
(d) 2
Question. Any solution of the linear equation 2x + 0y + 9 = 0 in two variables is of the form
(a) ( -9/2 ,m)
(b) (n,9/2)
(c) (0, 9/2)
(d) (–9, 0)
Question. The graph of the linear equation 2x + 3y = 6 cuts the y-axis at the point
(a) (2, 0)
(b) (0, 3)
(c) (3, 0)
(d) (0, 2)
Question. The equation x = 7, in two variables, can be written as
(a) x + 0y = 7
(b) 0x + y = 7
(c) 0x + 0y = 7
(d) x + y = 7
Question. Any point on the x – axis is of the form
(a) (x, y)
(b) (0, y)
(c) (x, 0)
(d) (x, x)
Question. Any point on the y = x is of the form
(a) (a, a)
(b) (0, a)
(c) (a, 0)
(d) (a, –a)
Question. The equation of x –axis is of the form
(a) x = 0
(b) y = 0
(c) x + y = 0
(d) x = y
Question. Graph of y = 6 is a line:
(a) parallel to x – axis at a distance 6 units from the origin
(b) parallel to y – axis at a distance 6 units from the origin
(c) making an intercept 6 on the x –axis.
(d) making an intercept 6 on both the axes.
Question. x=5, y=2 is a solution of the linear equation
(a) x + 2y = 7
(b) 5x + 2y = 7
(c) x + y = 7
(d) 5x + y = 7
Question. If a linear equation has solutions (–2, 2), (0, 0) and (2, –2), then its is of the form
(a) y – x = 0
(b) x + y = 0
(c) –2x + y = 0
(d) –x + 2y = 0
Question. The positive solutions of the equation is ax + by + c = 0 always lie in the
(a) 1st quadrant
(b) 2nd quadrant
(c) 3rd quadrant
(d)4th quadrant
Question. The graph of the linear equation 2x + 3y = 6 is a line which meets the x axis at the point
(a) (2, 0)
(b) (0, 3)
(c) (3, 0)
(d) (0, 2)
Question. If we multiply or divide both sides of a linear equation with a non-zero number, then the solution of the linear equation:
(a) changes
(b) remains the same
(c) changes in case of multiplication only
(d) changes in case of division only
Question. How many linear equation in x and y can be satisfied by x = 1 and y = 2?
(a) only one
(b) two
(c) infinitely many
(d) three
Question. The point of the form (a, a) always lies on:
(a) x – axis
(b) y – axis
(c) on the line y = x
(d) on the x + y =0
Question. The point of the form (a, –a) always lies on:
(a) x = a
(b) y = –a
(c) y = x
(d) x + y =0
Question. Which of the following is not a linear equation in two variables?
(a) ax + by = c
(b) ax2 + by = c
(c) 2x + 3y = 5
(d) 3x + 2y = 6
Question. The graph of ax + by + c = 0 is
(a) a straight line parallel to x–axis
(b) a straight line parallel to y–axis
(c) a general straight line
(d) a line in the 2nd and 3rd quadant
Question. The solution of a linear equation in two variables is
(a) a number which satisfies the given equation
(b) an ordered pair which satisfies the given equation
(c) an ordered pair, whose respective values when substituted for x and y in the given equation, satisfies it
(d) none of these
Question. One of the solution of a linear equation in two variables is
(a) (3, 2)
(b) (3, –2)
(c) (2, 3)
(d) (–2, –3)
Question. The ordered pair (m, n) satisfies the equation ax + by + c = 0 if
(a) am + bn = 0
(b) c = 0
(c) am + bn + c = 0
(d) am + bn – c = 0
Question. The equation of x – axis is
(a) a = 0
(b) y = 0
(c) x = 0
(d) y = k
Question. From the graph of a line, we can find the coordinates of
(a) only two point lying on the line
(b) only two points only lying on the line.
(c) only finite number of points lying on the line.
(d) only infinite number of points lying on the line.
Question. A linear equation in two variables has
(a) no solution
(b) only one solution
(c) only two solutions
(d) infinitely many solutions
Question. An equation of the form ax + by + c = 0 represents a linear equation in two variables, if
(a) a = 0, b ≠ 0
(b) a ≠ 0, b = 0
(c) a = 0, b = 0
(d) a = 0, b ≠ 0
Question. The graph of the linear equation in two variables y = mx is
(a) a line parallel to x – axis
(b) a line parallel to y – axis
(c) a line passing through the origin
(d) not a straight line
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MCQs for Chapter 4 Linear Equations in Two Variables Mathematics Class 9
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You can download the CBSE MCQs for Class 9 Mathematics Chapter 4 Linear Equations in Two Variables for latest session from StudiesToday.com
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