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Lecture 3

MAT 114 Lecture 3: Sect+3.2


Department
Mathematics
Course Code
MAT 114
Professor
Lisa Holden
Lecture
3

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section 3.2
Using Matrices to SolveSystems
Of Equations
LINEAR EQUATION
21 Xt212 2t213 3ao
an Xn bwhere
21 i212 213 oare constants
and are called the coefficients
bis called the constant
term or the right hand
side
examples
3xt4yzto
4X5yg

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56212 38499
EXAMPLE Write the augmented
matrix matrix whose rows are
the coefficient rows of the
equations for the following
systems
xYrhs
Xt yI
3xt2y I
Y
my
II it

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EXAMPLE Write the
augmented matrix for the
following system
yzrhs
XtY22
XYTz O
fEy 214
XYZrhs
ii it
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