Unit 1 Review: Functions and Systems of Equations

Match the solution to the system of equations.

• (4, -1)

• 
• (1, 4)

• 
• (-2, -1)

• 
• (2, -1)

• 

What is the solution?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

What is the solution to this system?
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

The ordered pair that satisfies BOTH equations in the system is called the _____________________

• system of equations
• function
• graph
• solution 

6x + y = -1
y = -3x - 4

• (3, 1)
• (1, 7)
• (-3, 1)
• (1, -7)

If a system of equations has no solution, what does the graph look like? 

• intersecting lines
• parallel lines
• skew lines
• intersecting lines

Match the following

• (3, 3)

• 
• (-2, 3)

• 
• (3, -3)

• 
• (-1, 4)

• 

Solve by elimination
-12x-4y= -8 
  -6x-2y= -4

• no solution 
• (0,0)
• infinite solutions 
• (4,0)

Solve the system of equations.
y = 4x+1
3x + 2y = 13

• (1, 5)
• (5, 1)
• (0.25, 2)
• ∅