Prof. was late to class today. A person as frequently late as I am shouldn’t be so annoyed by that. But I was never late to a training session I conducted.Starting with recap. Algebraic operations on matrices.
Multiplication of matrices is not commutative, and not always possible. To multiply two matrixes, the number of columns in the first matrix must equal the number of rows in the second matrix.
Section 3.1 — Systems of Linear Inequalities
Systems of linear inequalities, unlike linear equations, will not have a single solution. If graphed, they will always show a zone or area of valid solutions, or no solutions at all.
Graphing a system of linear inequalities just means graphing multiple inequalities on the same axis, and finding a zone of possible solutions valid for all the systems.
A solution region that extends infinitely in any dimension is unbounded. A system completely enclosed by its boundary lines is an unbounded solution region.
The corner point of a solution region is the point of intersection of two of the boundary lines.