This quiz works best with JavaScript enabled. Home > Grammar > Discourse > Substitution – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Substitution Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Simplify:6x + 2mwhen x = 14 and m = (-9) A) 66. B) -66. C) 102. D) 13. Show Answer Correct Answer: A) 66. 2. Let a = 10 and b =-4, calculate 2a + 4b A) 36. B) 4. C) -4. D) 28. Show Answer Correct Answer: B) 4. 3. What is the purpose of substitution in writing? A) To make sentences longer. B) To avoid repetition. C) To confuse the reader. D) To change the meaning. Show Answer Correct Answer: B) To avoid repetition. 4. Work out the value of 2a when a = 3 A) 5. B) 6. C) 8. D) 10. Show Answer Correct Answer: B) 6. 5. What is a nitronium ion? A) A negative ion formed by a nitrating mixture of concentrated nitric and sulfuric acids, which acts as an electrophile. B) A positive ion formed by a nitrating mixture of dilute nitric and sulfuric acids, which acts as an electrophile. C) A positive ion formed by a nitrating mixture of concentrated nitric and sulfuric acids, which acts as an electrophile. D) None of the above. Show Answer Correct Answer: C) A positive ion formed by a nitrating mixture of concentrated nitric and sulfuric acids, which acts as an electrophile. 6. Today's not a good day. I am feeling under the weather. A) Upset. B) Sick. C) Excited. D) Terrible. Show Answer Correct Answer: B) Sick. 7. Which word can substitute the phrase 'is not' in the sentence 'He is not coming'? A) Isn't. B) Aren't. C) Wasn't. D) Weren't. Show Answer Correct Answer: A) Isn't. 8. Which system would be best for you to use to solve this linear equation?4x-5y=14-6x+6y=-6 A) Elimination. B) Substitution. C) All the above. D) None of the above. Show Answer Correct Answer: A) Elimination. 9. What is the first step to solving this system by substitution? y = 4x-10 y = 3x-5 A) Y = 4(3y-5)-10. B) Y = 3(4x-10)-5. C) 4x-10 = 3x-5. D) Y = y. Show Answer Correct Answer: C) 4x-10 = 3x-5. 10. What does it mean to substitute? A) To add different variables together and see what you get. B) To graph and find the intersection. C) Guess and check. D) To replace the value of a variable with an equivalent expression. Show Answer Correct Answer: D) To replace the value of a variable with an equivalent expression. 11. What is the solution of the systems of equations shown below?y = 8x-2 y = 7x A) (-2, -14). B) (2, 14). C) (2, 18). D) None of the above. Show Answer Correct Answer: B) (2, 14). 12. 2x$^{2}$-10x = 4 A) -2. B) 38. C) 54. D) 22. Show Answer Correct Answer: D) 22. 13. Medical study of the skin and its diseases A) Venereology. B) Homeopathy. C) Dermatology. D) Orthopedics. Show Answer Correct Answer: C) Dermatology. 14. Solve:x =-3y-172x + 3y =-7 A) (1, -20). B) (3, 0). C) (-5, -2). D) (10, -9). Show Answer Correct Answer: D) (10, -9). 15. When was the fall of the Roman Empire? A) 476 AD. B) 476 BC. C) 800 AD. D) 800 BC. Show Answer Correct Answer: A) 476 AD. 16. Alice is crying noisily over her dead pet. She is ..... her out. A) Aloud. B) Sobbing. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sobbing. 17. $f\left(x\right)=x^4+4x^3+3x^2+2x-2$ A) -8. B) 4. C) 6. D) 10. Show Answer Correct Answer: A) -8. 18. What should the expression look like when the values (numbers) are substituted in for the variables (letters)?p +q+2 If p=3 and q=5, A) 3 + 3 + 2. B) 3p + 5q + 2. C) 5 + 5 + 2. D) 3 + 5 + 2. Show Answer Correct Answer: D) 3 + 5 + 2. 19. Which problem would be easier to solve by substitution? A) Y + x = 32y + x = 6. B) 3y-x = 72y = x + 6. C) 5x-2y = 6x + y = 2. D) Y = 2x + 2x + y = 7. Show Answer Correct Answer: D) Y = 2x + 2x + y = 7. 20. What is the SECOND STEP in solving this system by substitution? y =-1x-5 4x-8y = 4First step:4x-8(-1x-5) = 4 A) 4x-8x-40 = 4. B) 4x + 8x + 40 = 4. C) 4x + 8x-40 = 4. D) 4x-8x + 40 = 4. Show Answer Correct Answer: B) 4x + 8x + 40 = 4. 21. Y =-4x + 17y =-5x + 23 A) (6, -7). B) (4, -6). C) (6, 4). D) (6, -4). Show Answer Correct Answer: A) (6, -7). 22. 6h + 30; Solve if h = 6 A) 36. B) 66. C) 96. D) 60. Show Answer Correct Answer: B) 66. 23. Y = 8x + 92x + 6y = 8 A) (-2, -1). B) (-1, 0). C) (-1, 1). D) Infinite solutions. Show Answer Correct Answer: C) (-1, 1). 24. If x =-2.5 what does y equal?y = 2x + 12x-3y = 7 A) Y = 0.75. B) Y =-4. C) Y = 5.5. D) Y = 9. Show Answer Correct Answer: B) Y =-4. 25. History is a study of the ..... A) Everything. B) Past. C) Present. D) Future. Show Answer Correct Answer: B) Past. ← PreviousNext →Related QuizzesGrammar QuizzesSubstitution Quiz 1Substitution Quiz 2Substitution Quiz 3Substitution Quiz 4Substitution Quiz 5Substitution Quiz 6Substitution Quiz 7Substitution Quiz 8Substitution Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books