Chapter 8 Quiz Form B 2021-2022

Name: ____________________________________ Score: ________ / 25 CHAPTER #8 - QUIZ COMMON CORE ALGEBRA I PART I QUESTIONS: Answer all questions in this part by writing the choice of the appropriate answer in the blank beside the problem. Each question is worth 3 points. No partial credit will be awarded. 1. Which of the following is a solution to the system of equations shown below? (1) x 10 and y  21 2x  3y  83 (2) x  7 and y  23 y  2x 9 (3) x  4 and y 1 (4) x  4 and y  25 2. The lines y  0.5x 9 and y 1.5x 1 are shown graphed to the right. Which of the following is the solution to the system comprised of these two lines? (1) 4, 7 (2) 2,  2 (3) 8, 5 (4) 0, 9 3. A solution to the equation 4x 3y 12 must also be a solution to which of the following equations? (1) 4x 3y  12 (3) 2x 3y  6 (2) 12x 9y  36 (4) 8x 6y 12 4. Which of the following is the solution for s in the system of equation shown below? (1) 12 (3) 17 r  2s  52 (2) 15 (4) 20 2r  s  4 COMMON CORE ALGEBRA I, UNIT #8 PROGRESS QUIZ - FORM B eMATHINSTRUCTION, RED HOOK, NY 12571, © 2017

PART II QUESTIONS: Answer all questions in this part. Indicate the necessary steps and explain your reasoning. For all questions in this part, a correct numerical answer with no work shown will receive only 1 credit. 5. Is the point 11, 4 a solution to the system of equations shown below? Justify your response. [3 points] x  2y 19 x2y 3 6. The linear equation y  1 x  5 is shown graphed. If it was 3 combined with the equation y  5 x  3 to form a system, 3 what would be the solution to this system? Show how you arrived at your answer. [4 points] 7. The value x  9 a solution to the system of equations shown below, where b is some unknown constant. Determine the value of b. Show how you arrived at your answer. [2 points] y  2x  20 y  5x  b 8. Algebraically solve the following system of equations. Show all of your work. [4 points] 2x  3y  32 5x  4y  81 COMMON CORE ALGEBRA I, UNIT #8 PROGRESS QUIZ - FORM B eMATHINSTRUCTION, RED HOOK, NY 12571, © 2017