Systems of Equations and Inequalities.docx - Unit 2 Test:...

Unit 2 Test: Systems of Equations and Inequalities (Algebra II B - CIS+)
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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
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?
Question Number 3 Points: 5.00/5.00
Question Text
Using the graph, solve the system.
y =2
x −1
y =| x −2|
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
Question Number 5 Points: 5.00/5.00
Question Text
What is the system of equations that describes the following graph?