Download Matrix Methods

Math 2/Unit 2/Lesson 3/ TOOLKIT: Matrix Methods
In this investigation, you learned how to solve a system of two linear equations using matrices. For a
given system of two linear equations:
Summarize the process of
representing a system of linear
equations as a matrix equation,
solving the equation, and
checking the solution. An
example should be included.
AX = D
A is the coefficient matrix (numbers in front of the variables
X is the variable matrix
D is the Constant Matrix
X = A-1D
9x + 5 y = 25500
x + y = 3500
9 5  x  25500 
1 1  y   3500 

  

1
9 5 25500 
X 
 

1 1 3500 
 x  2000 
 y   1500 
  
