This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Mathematics Chapter 2 Relations And Functions – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 2 Relations And Functions Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Following relation is:Relation on set Z of all Integer numbers defined as R= \{(x, y):x-y is an integer\} A) Equivalence. B) Symmetric and Reflexive. C) Transitive and reflexive. D) None. Show Answer Correct Answer: A) Equivalence. 2. Let R be a relation on the set N of natural numbers defined by nRm if ndivides m. Then R is A) Reflexive and symmetric. B) Transitive and symmetric. C) Equivalence. D) Reflexive, transitive but notsymmetric. Show Answer Correct Answer: D) Reflexive, transitive but notsymmetric. 3. All of the x-coordinates or inputs are called what? A) Domain. B) Range. C) Relation. D) Function. Show Answer Correct Answer: A) Domain. 4. Is this relation a function:\{(2, 3), (4, 3), (6, 3), (8, 5) A) Yes, because none of the y coordinate (outputs) repeat itself. B) Yes, because none of the x-coordinates (inputs) repeat itself. C) No, because the y-coordinate of 3 repeats itself. D) No, because the x-coordinates repeat itself. Show Answer Correct Answer: B) Yes, because none of the x-coordinates (inputs) repeat itself. 5. In an identity relation, every element is related to ..... A) Its opposite. B) Itself. C) Another element. D) The domain. Show Answer Correct Answer: B) Itself. 6. Let R be the relation in the set N given by R = \{(a, b):a = b-2, b > 6\}, Then A) (2, 4) $\in$. B) (3, 8) undefined R. C) (6, 8) undefined R. D) (8, 7) undefined R. Show Answer Correct Answer: C) (6, 8) undefined R. 7. Which of the following sets of ordered pairs is a function? A) \{(0, 1), (0, 2), (0, 3), (0, 4), (0, 5)\}. B) \{(1, 2), (3, 4), (5, 6), (7, 8), (1, 9)\}. C) \{(-2, 7), (7, -2), (-3, -9), (-4, -2), (3, 2)\}. D) None of the above. Show Answer Correct Answer: C) \{(-2, 7), (7, -2), (-3, -9), (-4, -2), (3, 2)\}. 8. Any set of ordered pairs A) Domain. B) Range. C) Relation. D) Function. Show Answer Correct Answer: C) Relation. 9. Identify if this ordered pair a function or relation, then what should be the reason for your answer:I=\{(4, 3), (-1, 2), (3, 5), (4, -7), (8, 10), (-3, 2)\}. A) Relation. It has no repetition of x values. B) Relation. There are common elements in the given set. C) Function. No common x-coordinates exist in the given set. D) Function. It has positive values in some coordinates. Show Answer Correct Answer: B) Relation. There are common elements in the given set. 10. A student creates a function to represent the cost of pencils available for purchase at the school store. the store charges 5 cents a pencil for up to 20 pencils.What is the domain of this function? A) All integers drom 0 to 20. B) Al real numbers from 0 to 20. C) All integer multiples of 5 from 5 to 100. D) All real number multiples of 5 from 5 to 100. Show Answer Correct Answer: A) All integers drom 0 to 20. 11. Let R be a relation in the set \{1, 2, 3, 4\} given by R=\{(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3, 3), (3, 2)\} Then R is A) R is Reflexive and symmetric but not transitive. B) R is Reflexive and transitive but not symmetric. C) R is symmetric and transitive but not reflexive. D) R is an equivalence relation. Show Answer Correct Answer: B) R is Reflexive and transitive but not symmetric. 12. This relation is a function. True or false?\{(0, 1), (2, 4), (1, 0), (2, 3), (3, 6)\} A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 13. This is defined as the correspondence of elements in the Domain to elements in the Range. A) Range. B) Doman. C) Relation. D) Function. Show Answer Correct Answer: C) Relation. 14. What will be the domain for which the functions f(x) = 2x$^{2}$-1 and g(x) = 1-3x are equal? A) \{-2, 1\}. B) \{1/2, -2\}. C) [2, 12]. D) (-1, 2). Show Answer Correct Answer: B) \{1/2, -2\}. 15. If f(x) =-4x + 5 and g(x) = x$^{2}$ + x, find f(3) + g(9). A) 39. B) 83. C) -83. D) -39. Show Answer Correct Answer: B) 83. 16. What is the graph of a greatest integer function? A) Curve with varying degrees. B) Step function. C) Straight line passing through the origin. D) Horizontal line. Show Answer Correct Answer: B) Step function. 17. \{(A, B), (B, C), (C, D), (D, E)\} A) FUNCTION. B) NOT FUNCTION. C) DOMAIN. D) RANGE. Show Answer Correct Answer: A) FUNCTION. 18. What is the domain of the function h(x) = sqrt(x)? A) Only even numbers. B) All real numbers greater than or equal to 0. C) Integers greater than 0. D) All real numbers less than 0. Show Answer Correct Answer: B) All real numbers greater than or equal to 0. 19. The graph of a linear function is a ..... A) Circle. B) Line. C) Parabola. D) Ellipse. Show Answer Correct Answer: B) Line. 20. If f(x)=3x-1 and g(x)=2x$^{2}$-3, what is the value of f(2)+g(3)? A) 5. B) 13. C) 20. D) 38. Show Answer Correct Answer: C) 20. 21. Carrie wrote a set of ordered pairs to show y as a function of x. \{(-2, -4), (1, 8), (3, -1), (5, 7), (-3, 6)\}Which ordered pair would make Carrie's set no longer a function? A) (8, 1). B) (-4, 9). C) (3, 2). D) (4, 6). Show Answer Correct Answer: C) (3, 2). 22. The x-value of an ordered pair, represents the horizontal placement of the point. This is called the (a) A) A. x-coordinate. B) X-axis. C) Y-coordinate. D) None of the above. Show Answer Correct Answer: A) A. x-coordinate. 23. Given f(x) = 3x + 7, find f(5). A) 15. B) 22. C) 42. D) None of the above. Show Answer Correct Answer: B) 22. 24. F(x) = $2x^2$ $\frac{1}{3x}$ A) $\frac{3}{2x^2}$. B) $\frac{2}{3x^2}$. C) $\frac{2}{9x^2}$. D) $\frac{1}{6x^2}$. Show Answer Correct Answer: C) $\frac{2}{9x^2}$. 25. A graph that consists of points that are not connected is a ..... A) Function. B) Discrete function. C) Continuous function. D) Vertical line test. Show Answer Correct Answer: B) Discrete function. ← PreviousNext →Related QuizzesClass 11 Mathematics Chapter 2 Relations And Functions Quiz 1Class 11 Mathematics Chapter 2 Relations And Functions Quiz 2Class 11 Mathematics Chapter 2 Relations And Functions Quiz 3Class 11 Mathematics Chapter 2 Relations And Functions Quiz 4Class 11 Mathematics Chapter 2 Relations And Functions Quiz 5Class 11 Mathematics Chapter 2 Relations And Functions Quiz 6Class 11 Mathematics Chapter 2 Relations And Functions Quiz 7Class 11 Mathematics Chapter 2 Relations And Functions Quiz 8Class 11 Mathematics Chapter 2 Relations And Functions Quiz 10Class 11 Mathematics Chapter 2 Relations And Functions Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books