Systems of Equations and Inequalities.docx - Unit 2 Test Systems of Equations and Inequalities(Algebra II B CIS Back to Assignments Question Number 1

Unit 2 Test: Systems of Equations and Inequalities (Algebra II B - CIS+) Back to Assignments Question Number 1 Points: 5.00/5.00 Question Text Solve the following system of equations using matrices. 3 x – 2 y = 31 3 x + 2 y = -1 Your Answer A. (5, -8) Question Number 2 Points: 0.00/5.00 Question Text Identify the system of equations used to solve the following problem. How much of a 60% saline solution would you need to add to pure water to create 10 L of a 50% saline solution? Your Answer B. 0.6 x + y =10 x + y =5 Question Number 3 Points: 5.00/5.00 Question Text Using the graph, solve the system. y =2 x −1 y =| x −2| Your Answer D. (1,1) Question Number 4 Points: 5.00/5.00 Question Text Solve the following system of equations using matrices. x + y = 1 2 x + 5 y = 4 Your Answer C. Question Number 5 Points: 5.00/5.00 Question Text What is the system of equations that describes the following graph? Your Answer A. x + y > 3 x = -1 Question Number 6 Points: 5.00/5.00 Question Text Solve the following system of equations by using the elimination method.