An infeasible linear system
The system of 3 equations in 2 unknowns
![Rendered by QuickLaTeX.com \[\begin{aligned} 3 x_1+4.5 x_2 & =1, \\ 2 x_1+1.2 x_2 & =-3.2, \\ -0.1 x_1+8.2 x_2 & =1.5, \end{aligned}\]](https://ecampusontario.pressbooks.pub/app/uploads/quicklatex/quicklatex.com-daec4b666563db9223a33f96026e2774_l3.png)
can be written as
, where
is the
matrix
![Rendered by QuickLaTeX.com \[A=\left(\begin{array}{cc} 3 & 4.5 \\ 2 & 1.2 \\ -0.1 & 8.2 \end{array}\right)\]](https://ecampusontario.pressbooks.pub/app/uploads/quicklatex/quicklatex.com-d4ae2ef44cff3b16770f0f30ffd4acb7_l3.png)
and
is the 3 -vector
![Rendered by QuickLaTeX.com \[y=\left(\begin{array}{c} 1 \\ -3.2 \\ 1.5 \end{array}\right)\]](https://ecampusontario.pressbooks.pub/app/uploads/quicklatex/quicklatex.com-dff9c955b93e8167bc467c36cf855697_l3.png)
The system of 3 equations in 2 unknowns
![Rendered by QuickLaTeX.com \[\begin{aligned} 3 x_1+4.5 x_2 & =1, \\ 2 x_1+1.2 x_2 & =-3.2, \\ -0.1 x_1+8.2 x_2 & =1.5, \end{aligned}\]](https://ecampusontario.pressbooks.pub/app/uploads/quicklatex/quicklatex.com-daec4b666563db9223a33f96026e2774_l3.png)
can be written as
, where
is the
matrix
![Rendered by QuickLaTeX.com \[A=\left(\begin{array}{cc} 3 & 4.5 \\ 2 & 1.2 \\ -0.1 & 8.2 \end{array}\right)\]](https://ecampusontario.pressbooks.pub/app/uploads/quicklatex/quicklatex.com-d4ae2ef44cff3b16770f0f30ffd4acb7_l3.png)
and
is the 3 -vector
![Rendered by QuickLaTeX.com \[y=\left(\begin{array}{c} 1 \\ -3.2 \\ 1.5 \end{array}\right)\]](https://ecampusontario.pressbooks.pub/app/uploads/quicklatex/quicklatex.com-dff9c955b93e8167bc467c36cf855697_l3.png)