System of Equations

Which of the following is a systems of equations?

• y = 3x - 4
• y = 4
• y = 1/2x + 7   
  4x - 5y = 22
• 3x + 2 
  6x - 4y 

What is the simplest way to solve this systems of equations?
5x+6y= -10
3x-6y= -6

• Graphing
• Substitution
• Elimination - Addition Method
• Elimination - Subtraction Method

• Infinitely Many Solutions
• No Solution
• One Solution

Is ​(9​,5​) a solution of the system of linear​ equations? 
-9x + y = -76
x + y = 4

• Yes
• No

Does this system have one​ solution, no​ solution, or an infinite number of​ solutions?

4x + 3y = 7
32x + 24y = 2

• One Solution
• No Solution
• Infinitely many solutions

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

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

This is a system so the graph is stating there are two line right on top of one another.

• Infinitely Many Solutions

• No Solution

• One Solution

What is the simplest way to solve this systems of equations?
-4x + 9y = 28
-4x - y = -28

• Graphing
• Substitution
• Elimination - Addition Method
• Elimination - Subtraction Method

• (-1, -4)
• (-1, -3)
• (-3, -1)
• (-4, -1)

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

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)