Solving Linear Systems by Graphing and Substitution Review

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

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

Solve the system by graphing.

-2x - 2y = 16

y = -8

• (0, -8)

• (-8, 0)

• (-16, -8)

• (-16, -8)

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

^{Write the 2 equations in
y = mx + b form}

• y =2/3x and
  y = 2x -4
• y = -2/3x +1
  and y = 2/3x - 4
• y = 2x - 4 and
  y = 1/2x
• y = 2x + 3 and
  y = 2/3x - 4

Which two lines show a system with no solution?

• Purple and Green
• Green and Red
• Purple and Blue
• Red and Blue

What is the solution?

• No solution
• (0, 2)
• (0, -4)
• (3, -3)

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

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

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?

• (-4, 2)
• (4, 2)
• (2, -4)
• (2, 4)

Find the solution of the system of equations below using the substitution method:

y = 2x - 4

7x - 2y = 5

• (-1, -6)

• (-1, -8)

• (-2, 6)

• (1, -8),