Unit 5: System of Equations/Inequalities Pre-Test

Solve the system of equations by SUBSTITUTION.
y = 3x - 11 
2x + 3y = 0

• (-2, 3)
• (-3, 2)
• (3, -2)
• (2, -3)

Solve the system of equations
by ELIMINATION.
x - y = 5  
x + y = 3

• (4, 1)
• (4, -1)
• (-4, 1)
• (-4, -1)

Solve the system of equations.
2x + 2y = 10
2x - 3y = 5

• (4, 1)
• (1, 4)
• (-4, 1)
• (4, -1)

What is the BEST method to solve the following system of equations? 
y = 3x - 8
y = 4 - x

• Graphing Method
• Substitution Method
• Elimination Method
• Guess & Check Method

Solve:
x = -3y - 17
2x + 3y = -7

• (1, -20)
• (3, 0)
• (-5, -2)
• (10 , -9)

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2, 5)
• (-2, -5)
• (2, -5)
• (2, 5)

What is the BEST method for solving the following system of equations?
-3x + 3y = 18
5x - 3y = -26

• Graphing Method
• Substitution Method
• Elimination Method
• Guess & Check Method

What is the solution?

• (-2, 4)
• (2, 4) 
• (3, 1)
• (1, 3)

What is the solution?

• (-3, 3)
• Infinitely many solutions
• No solutions
• (0, 0)

What kind of lines have ONE solution to a system of equations

• Parallel Lines
• Overlapping lines
• Intersecting Lines
• Skew Lines