This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Mathematics Chapter 2 Relations And Functions – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 2 Relations And Functions Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Given f(x) =-4x-10 and f(x) = 10. Find x A) X =-5. B) X = 5. C) X =-50. D) X = 30. Show Answer Correct Answer: A) X =-5. 2. Which statement is true about the relation \{(-2, 4), (4, 2), (2, 4), -4, 2)\}? A) The relation is NOT a function because all the y-values are not different. B) The relation is NOT a function because all the x-values are not different. C) The relation is a function because the y-values are different. D) The relation is a function because all the x-values are different. Show Answer Correct Answer: D) The relation is a function because all the x-values are different. 3. Young Sway is said to have four times more fans than Trey Clay. If Young Sway is represented as y, and Trey Clay is x, what is the function? A) Y= 4x. B) X = 4y. C) Y = 4 + x. D) Y = 4-x. Show Answer Correct Answer: A) Y= 4x. 4. What is the range of the function:\{(2, 3), (4, 3), (6, 3), (8, 5) A) 2, 4. B) 3, 5. C) 3, 3, 3, 5. D) 2, 4, 6, 8. Show Answer Correct Answer: B) 3, 5. 5. F(x) = 3x-7f(-1) = A) -4. B) -10. C) 10. D) 4. Show Answer Correct Answer: B) -10. 6. Ronald wants to relate well known places to its country location. Which of the following is part of Ronald's relation? A) (Taj Mahal, Indonesia). B) (Statue of Liberty, USA). C) (Eiffel Tower, Italy). D) (Great Wall, Thailand). Show Answer Correct Answer: B) (Statue of Liberty, USA). 7. Find the inverse of f(x) =-4x-12 A) F$^{-1}$(x) = 4x-3. B) F$^{-1}$(x) =-1/4x-3. C) F$^{-1}$(x) = 1/4x + 3. D) F$^{-1}$(x) =-4x-3. Show Answer Correct Answer: B) F$^{-1}$(x) =-1/4x-3. 8. If the ordered pairs (a + 2, 4) and (5, 2a + b) are equal then (a, b) is A) (2, -2). B) (5, 1). C) (2, 3). D) (3, -2). Show Answer Correct Answer: D) (3, -2). 9. How do you find an inverse? A) Switch x and y. B) Flip the signs on all the x-values. C) Flip the signs on all the y-values. D) Do nothing. Show Answer Correct Answer: A) Switch x and y. 10. What is the range of a function? A) Sum of all input values. B) Product of all output values. C) Set of all possible output values (y-values). D) Average of all output values. Show Answer Correct Answer: C) Set of all possible output values (y-values). 11. Which relation has a domain of \{2, 6, 8\}? A) \{(2, 0), (4, 8), (6, 2), (8, 0)\}. B) \{(6, 1), (6, 2), (2, 4), (8, 6)\}. C) \{(1, 8), (2, 2), (2, 6)\}. D) \{(8, 6), (2, 8), (8, 2)\}. Show Answer Correct Answer: B) \{(6, 1), (6, 2), (2, 4), (8, 6)\}. 12. Let T be the set of all triangles in a Euclidean plane, and let a realtion R on T be defined as a Rb if a is congruent to b, for all a, b belongs to T. Then R is A) Reflexive but not transitive. B) Transitive but not symmetric. C) Equivalence. D) None of these. Show Answer Correct Answer: C) Equivalence. 13. In an equivalence relation, if two elements belong to the same equivalence class, then they are ..... A) Different. B) Equal. C) Irrelated. D) Inverse. Show Answer Correct Answer: B) Equal. 14. What is the domain of the ordered pairs \{(3, 4), (4, 5), (5, 6), (6, 7), (7, 8)\}? A) \{3, 4, 5, 6, 7\}. B) \{4, 5, 6, 7\}. C) \{4, 5, 6, 7, 8\}. D) \{3, 4, 5, 6\}. Show Answer Correct Answer: A) \{3, 4, 5, 6, 7\}. 15. What variable typically represents the range? A) X. B) Y. C) All the above. D) None of the above. Show Answer Correct Answer: B) Y. 16. Vertical line intersects the curve atmost one point A) Identity Function. B) Into Function. C) Constant Function. D) One to one Function. Show Answer Correct Answer: D) One to one Function. 17. Graph of a linear function geometrically represents a A) Circle. B) Parabola. C) Straight line. D) Hyperbola. Show Answer Correct Answer: C) Straight line. 18. IF A AND B ARE FINITE SETS SUCH THAT n(A) = p, n(B) = q THEN THE TOTAL NUMBER OF FUNCTION THAT EXIST FROM A TO B IS ..... A) $2^p$. B) $2^q$. C) $q^p$. D) $p^q$. Show Answer Correct Answer: C) $q^p$. 19. Find the domain of the following function y = 3x. A) All real numbers except 0. B) All real numbers. C) All real numbers except 3. D) All real numbers except-1. Show Answer Correct Answer: B) All real numbers. 20. If f(x)=x$^{2}$-1 and g(x)=x-2, then (f-g)(2) is A) 3. B) -3. C) 4. D) -2. Show Answer Correct Answer: A) 3. 21. How can you determine if a relation is a function? A) A relation is a function if it is represented by a straight line on a graph. B) A relation is a function if it contains at least one input-output pair. C) A relation is a function if it has multiple outputs for the same input. D) A relation is a function if each input has exactly one output. Show Answer Correct Answer: D) A relation is a function if each input has exactly one output. 22. Georgia's electricity company charges her Php 5.53 per kWh (kilowatt-hour) of electricity, plus a basic connection charge of Php 755 per month. If x is equal to 75, how much is her electricity bill? A) Php 57, 024.75. B) Php 1, 154.75. C) Php 56, 630.53. D) Php 4, 099.15. Show Answer Correct Answer: B) Php 1, 154.75. 23. Four regions into which the x-and y-axis separate the coordinate plane. The four regions are numbered (I, II, III, IV) A) Ordered pair. B) Coordinate plane. C) Quadrants. D) Mapping. Show Answer Correct Answer: C) Quadrants. 24. Determine which of the following ordered pairs is NOT an element of the relation defined by y = 2x + 1? A) (2, 5). B) (3, 6). C) (0, 1). D) (4, 9). Show Answer Correct Answer: B) (3, 6). 25. If f ( x) = 2x$^{2}$ and g (x ) = $\frac{1}{3}$ $\circ$ 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) $\frac{2}{9x^2}$. 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