Unit 3 review

What is the solution to this system?

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

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

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

Will the solution (-3, -7) make the following system of equations a true statement? 
y = 4x + 5
y = x – 4

• YES
• NO

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

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

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Solve each system by substitution.

• A
• B
• C
• D

Solve each system by substitution.

• A
• B
• C
• D

Solve each system by substitution.

• A
• B
• C
• D

Solve each system by substitution.

• A
• B
• C
• D

This system has _____ solutions

• 0
• 1
• 2
• Infinitely many