Republic of the Philippines Department of Education REGION VI – WESTERN VISAYAS SCHOOLS DIVISION OF ILOILO NAPNAPAN NATIONAL HIGH SCHOOL FIRST QUARTER EXAMINATION IN GENERAL MATHEMATICS GRADE 11 First Semester, S.Y. 2022-2023 Name: ____________________________Grade & Section: _______________________Score: ________ Directions: Read each item carefully and write your answers in the answer sheet. I. MULTIPLE CHOICE: Write the letter of the best answer in your answer sheet. 1. Which of the following sets of ordered pairs is a function? a. {(2,1), (2,2), (3,1), (4,3)} b. {1,2), (2,4), (3,2), (4,3)} c. {(4,2), (2,3), (2,1), (4,3)} d. {(2,1), (2,2), (3,1), (4,3)} 2. Which of the following mapping diagrams represent a function? x y x y x y a. 1 3 b. 1 c. 3 2 5 5 3 2 4 3 6 4 5 5 4 7 7 7 3. Given f(x)= 2x + 1. What is the value of f(2)? a. 45 b. 5 4. Which a. b. c. d. c. 6 y 2 4 6 7 d. 7 of the following set of ordered pairs is a relation? {(2,1), (2,2), (3,1), (4,3)} {1,2), (2,4), (3,2), (4,3)} {(1,2), (2,3), (3,1), (4,3)} {(2,1), (1,2), (3,1), (4,3)} 5. What is f(x) + g(x), if f(x)= 3x + 17 and g(x)=6x – 8? a. 9x + 25 b. 6x + 9 c. 9x + 9 6. Which of the following is a graph of a function? a. c. b. d. x 1 2 3 d. d. 9x – 9 7. What is f(x) - g(x), if f(x)= 7x + 22 and g(x)= 6x + 8? a. x + 14 b. x - 14 c. 13x + 14 d. 13x – 14 8. Given g(x) = 3x2 + 9. What is the value of g(3)? a. 9 b. 27 d. 45 c. 36 9. Which of the following equations represents a quadratic function? a. f(x) = 3 +2x2 c. f(x) = 3x – 22 b. 2y2 + 3 = x d. f(x) = 2x – 3 10. In an organ pipe, the frequency f of vibration of air is inversely proportional to the length L of the pipe.1 Suppose that the frequency of vibration in a 10-foot pipe is 54 vibrations per second. Express f as a function of L. 𝐿 a. 𝑓(𝐿) = 540 b. 𝑓(𝐿) = 540 𝐿 𝐿 c. 𝐿(𝑓) = 540 11. Let 𝑓(𝑥) = 2𝑥 + 1, 𝑔 (𝑥) = 𝑥 + 1. Find and simplify (f ° g)(x). a. 2x+3 b. 2x-3 c. 3x +2 d. 𝐿(𝑓) = 540 𝐿 d. 3x + 3 12. The distance from Manila to Baguio is around 250 kilometers. How long will it take you to get to Baguio if your average speed is 25 kilometers per hour? a. 5 hrs. b. 10 hrs. c. 15 hrs. d. 20 hrs. 13. Let 𝑓(𝑥) = 2𝑥 + 1, 𝑔 (𝑥) = 𝑥 + 1. Find and simplify (g ° f)(x). a. -2x+2 b. 2x+2 c. 2x -2 d. x +2 14. The distance from Manila to Baguio is around 250 kilometers. Construct a function (s), where s is the speed of travel that describes the time it takes to drive from Manila to Baguio. a. 𝑡(𝑠) = 𝑠 250 b. 𝑠(𝑡) = 250 𝑠 c. 𝑡(𝑠) = 250 𝑡 d. 𝑠(𝑡) = 250 𝑠 15. What is f(x) · g(x), if f(x)= x + 5 and g(x)= x + 4? a. x2 + 9x – 20 b. x2 + 9x + 20 c. x2 + 9x – 9 d. x2 + 9x + 9 16. Given p(x) =2x2 + 5x + 5. What is the value of p(5)? a. 75 b. 80 c. 85 d. 90 17. The quadratic function f(x) = x2 + 2x -1 is expressed in standard form as a. f(x) = ( x + 1 )2 + 1 c. f(x) = ( x + 1 )2 + 2 b. f(x) = ( x + 1 )2 – 2 d. f(x) = ( x + 1 )2 – 1 18. What is f(x) = -3(x + 2)2 + 2 when written in the form f(x) = ax2 + bx + c? a. f(x) = -3x + 12x – 10 c. f(x) = -3x + 12x + 10 b. f(x) = 3x – 12x + 10 d. f(x) = -3x – 12x – 10 19. Which of the following mapping diagrams represent a relation? x y x y x y a. 1 3 b. 1 c. 3 2 5 5 3 2 4 3 6 4 5 5 4 7 7 7 20. What is f(x) ÷ g(x), if f(x)= x2 + 4x + 4 and g(x)= x + 2? a. -x + 2 b. x – 2 c. -x – 2 5 d. x 1 2 3 7 y 2 4 6 d. x + 2 21. Which of the following is a graph of a relation? a. c. b. d. 22. Let 𝑝(𝑥) = 3𝑥 + 3, 𝑞 (𝑥) = 2𝑥 + 2. Find and simplify (p ° q)(3). a. 18 b. 24 c. 27 23. Let 𝑡(𝑥) = 3𝑥 + 3, 𝑠 (𝑥) = 2𝑥 + 2. Find and simplify (t ° s)(x). a. 6x – 9 b. 9x – 6 c. 9x + 6 3 24. Given c(x)= 3x + 3x+ 3. What is the value of c(3)? a. 92 b. 93 c. 94 25. Which of the following is a rational function? a. 3x – 55x + 5 = 0 b. x > 2x + 12 c. f(x) = 3 +2x2 d. 30 d. 6x + 9 d. 95 d. 3x3 + x < 15 26. The distance from Tigbauan to Miagao is around 25 kilometers. How long will it take you to get to Miagao if your average speed is 5 kilometers per hour? a. 5 hrs. b. 10 hrs. c. 15 hrs. d. 20 hrs. 27. Which of the following is a rational equation? a. 3x – 55x + 5 = 0 b. x > 2x + 12 c. f(x) = 3 +2x2 d. 3x3 + x < 15 28. Which of the following is a rational inequality? a. 3x – 55x + 5 = 0 b. x > 2x + 12 c. f(x) = 3 +2x2 d. None of these (𝑥) 29. Let 𝑝(𝑥) = 3𝑥 − 10, 𝑞 = −5𝑥 + 2. Find and simplify (p ° q)(8). a. -104 b. -114 c. -124 d. -134 3𝑥+5 5 30. Solve for x: = 2𝑥+7 8 a.-5/14 b. 5/14 c. -14/5 d. 14/5 II. BONUS POINT: Make a MATHugot (5 points) “Honesty is the best policy.” God bless Prepared by: Cherilyn T. Tigero Subject Teacher