Unit 7 - Systems of Linear Equations

Question 1

Gaussian elimination is

Answer 1

a method for solving systems of linear equations.

Question 2

During Gaussian elimination the goal is

Answer 2

To make the bottom left of the matrix 0
e.g.
1 1 1
0 1 1
or
1 1 1 1
0 1 1 1
0 0 1 1

Question 3

Using Gaussian elimination how do you solve a system of linear equations

Answer 3

1. Rearrange the Equations
2. Put the equations into a matrix
3. Using elimination make the bottom left corner 0
4. Use your answer for Z (or other letter) to solve for the remaining letters