Chapter 8 Quiz Form A 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  7 and y 15 x  2y  37 (2) x 11 and y  7 y x4 (3) x  21 and y  8 (4) x 15 and y  11 2. The lines y  0.5x 8 and y  5 x are shown graphed to the right. Which of the following is the solution to the system comprised of these two lines? (1) 0, 5 (2) 2, 7 (3) 2, 3 (4) 4,10 3. A solution to the equation 4x  2y  20 must also be a solution to which of the following equations? (1) 8x  2y  40 (3) 2x  y 10 (2) 2x  2y 10 (4) 4x  4y  40 4. Which of the following is the solution for b in the system of equations shown below? (1) 25 (3) 42 a  b  67 (2) 36 (4) 51 a  b 17 COMMON CORE ALGEBRA I, UNIT #8 PROGRESS QUIZ - FORM A 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 5, 8 a solution to the system of equations shown below? Justify your response. [3 points] 4x  y  28 x y 3 6. The linear equation y   1 x  4 is shown graphed. If it was 2 combined with the equation y  3 x  4 to form a system, 2 what would be the solution to this system? Show how you arrived at your answer. [4 points] 7. The value x  5 is 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  4x 7 y  2x  b 8. Algebraically solve the following system of equations. Show all of your work. [4 points] 2x 5y  3 3x  2y 14 COMMON CORE ALGEBRA I, UNIT #8 PROGRESS QUIZ - FORM A eMATHINSTRUCTION, RED HOOK, NY 12571, © 2017