Systems of Equations

What is the solution?

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

What is the solution?

• (7, -2)
• (7,2)
• (2, 7)
• (-2, 7)

How many solutions?

• One Solution
• No solution
• Infinitely Many Solutions

• (7, 2)
• (2, 7)
• (-2, 7)
• (2, -7)

- 3x + y = -8

    x + y   = 4

• (3, 1)
• (1, 3)
• (3, -1)
• (-3, 1)

Solve using substitution.

• (5, 4)
• (4, 5)

How many solutions?

• One Solution
• No solution
• Infinitely Many Solutions

What is the solution?

• (2, 2)
• (3, 2)
• (3, 4)
• (2, 3) _

 

        What is the solution?

• (-2, -4)
• (4, 2)
• (2, 4)
• (4, -2)