This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Maths Chapter 4 Linear Equations In Two Variables – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 4 Linear Equations In Two Variables Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Solve the system and determine the number of solutions it has. If it has one solution, name it. $y=7x+10$ $y=7x-5$ A) No Solution. B) Infinite Solutions. C) One Solution (10, 5). D) One Solution (0, 0). Show Answer Correct Answer: A) No Solution. 2. Which of the following is linear equation in two variable A) $ Shif+z = $. B) $ 5x-7 = 8-9x $. C) $ 5x^2+7x+1 = 0 $. D) $10x^2+5xy+20y^2=0$. Show Answer Correct Answer: A) $ Shif+z = $. 3. For the equation 5x-7y = 35, if y = 5, then the value of 'x' is: A) 14. B) 12. C) -14. D) -12. Show Answer Correct Answer: A) 14. 4. Which option correctly represents the equation 3x-4y = 6.8 in the standard form ax + by + c = 0 and indicates the values of a, b and c? A) 3x-4y-6.8 = 0, a= 3, b =-4, c =-6.8. B) 3x-4y + 6.8 = 0, a= 3, b = 4, c = 6.8. C) 3x-4y-6.8 = 0, a= 3, b =-4, c = 6.8. D) -3x-4y + 6.8 = 0, a=-3, b =-4, c = 6.8. Show Answer Correct Answer: A) 3x-4y-6.8 = 0, a= 3, b =-4, c =-6.8. 5. Determine the point of the equation 4x + 6y = 24 whose x-coordinate is 3/2 times its ordinate. A) X = 3, y = 2. B) X = 2, y = 1. C) X = 3, y = 5. D) X = 3, y = 7. Show Answer Correct Answer: A) X = 3, y = 2. 6. X = 9 and y = 4, is solution of which of the following equations? A) 2x + y = 17. B) X + y = 17. C) X + 2y = 17. D) The opposite-i.e. = 17. Show Answer Correct Answer: C) X + 2y = 17. 7. The graph of linear equation x+2y = 2, cuts the y-axis at A) (2, 0). B) (0, 2). C) (0, 1). D) (1, 1). Show Answer Correct Answer: C) (0, 1). 8. A line parallel to x axis and passing through A) (3, 4). B) (4, 3). C) (0, 4). D) (4, 0). Show Answer Correct Answer: C) (0, 4). 9. 6x + y = + 5-2x + y = 5 A) (-3, -6). B) (-6, 3). C) (0, 5). D) (-3, 5). Show Answer Correct Answer: C) (0, 5). 10. Plot the line with the equation 2x + 5y = 10 on a graph A) Y = 5/2x + 10. B) Y = 2/5x + 10. C) Y =-5/2x + 10. D) Y =-2/5x + 2. Show Answer Correct Answer: D) Y =-2/5x + 2. 11. Solve:$\frac{2y+1}{3y-5}=0$ A) 6. B) $-2$. C) $\frac{-1}{2}$. D) 4. Show Answer Correct Answer: C) $\frac{-1}{2}$. 12. Write the equation 2x-4 = 4x + 4 in two variables. A) 0x + 1y + 4 = 0. B) 1x + 0y-4 = 0. C) 0x + 0Y + 4 = 0. D) 1x + 0Y + 4 = 0. Show Answer Correct Answer: D) 1x + 0Y + 4 = 0. 13. The sum of a number and 8 is 25 . frame equation A) $ 8x = 25 $. B) $x+8=25$. C) $x-8=25$. D) $x=20$. Show Answer Correct Answer: B) $x+8=25$. 14. What is the slope of the equation?y =-3x + 4 A) -3. B) 4. C) -4. D) 3. Show Answer Correct Answer: A) -3. 15. In a two-digit number, the units digit is thrice the tens digit. If 18 is added to the number, the digits interchange their place. Find the number. A) 31. B) 26. C) 13. D) 62. Show Answer Correct Answer: C) 13. 16. If a linear equation has solutions (-2, 2), (0, 0) and (2, -2), then it is of the form A) Y-x = 0. B) X + y = 0. C) -2x + y = 0. D) -x + 2y = 0. Show Answer Correct Answer: B) X + y = 0. 17. Tell whether the ordered pair is a solution of:y =-3x + 9(3, 1) A) Yes!. B) No!. C) All the above. D) None of the above. Show Answer Correct Answer: B) No!. 18. Equation of the line parallel to x-axis and 6 units above the origin is A) X = 6. B) X =-6. C) Y = 6. D) Y =-6. Show Answer Correct Answer: C) Y = 6. 19. Which one is first step to solve this $2y-7=\frac{y+3}{3}$ A) $3\left(2y-7\right)=y+3$. B) $ 6y+y = 3+$ 21. C) $ 6y-7 = y+$ 3. D) $2y-7=y+3$. Show Answer Correct Answer: A) $3\left(2y-7\right)=y+3$. 20. Which of the following is not a solution of x+2y=4 A) (0, 2). B) (2, 0). C) (-2, 3). D) (2, 1). Show Answer Correct Answer: B) (2, 0). 21. The graph of line x = 3 passes through the point A) (0, 3). B) (2, 3). C) (3, 2). D) None of these. Show Answer Correct Answer: C) (3, 2). 22. Find x if $4x+3=2x-5$ A) $-4$. B) 4. C) 2. D) $-2$. Show Answer Correct Answer: A) $-4$. 23. Which of the following options is the standard form of the linear equation 7x-21 + 2y = 0? A) 21 + any + whale = 0. B) That is. C) Step-21 + i.e. = 0. D) Swak + any-21 = 0. Show Answer Correct Answer: D) Swak + any-21 = 0. 24. The graph of which of the following equations passes through the origin? A) (i) y = 2x + c. B) (ii) y = 2x-c. C) (iii) y = 2x. D) None of the above. Show Answer Correct Answer: C) (iii) y = 2x. 25. Every linear equations in two variables has A) An infinite number of solutions. B) No solution. C) Two solution. D) One solution. 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