Solving Systems of Equations

^{What is the solution?}

• 1

• -2

• (1, 2)

• (1, -1)

What is the solution to the system?

• (0, 3)

• (1, -1)

• (-3, 1)

• (1, 3)

How many Solutions?

• One Solution

• No solution

• Infinitely Many Solutions

Solve the following system by graphing.  What is the solution?

• (3, -1)
• (-1, -3)
• (-1, -1)
• (-1, 3)

Solve the following system by graphing.  What is the solution?

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

Solve the following system by graphing.  What is the solution?

• Infinite number of solutions
• (3, 3)
• (3, -3)
• (-3, 3)

Solve the system of equations using substitution.

• (-6, 30)

• (-2, 10)

• (44, 39)

• Infinite solutions

Solve the system of equations using substitution.

y = 7x + 9

2y + 2x = -14

• (5, 0)

• (9, 18)

• (-2, -5)

• (1, 16)

Solve the system of equations using substitution.

y=8x+1

y=6x+3

• (1, 9)

• (4, 14)

• (0, 1)

• (2, 4)

Solve the system of equations using substitution.

2x + 3y = 4

y= 5x - 27

• (5,-2)

• (5, 2)

• (2,3)

• (3,2)