# Math Insight

### Overview of: The determinant of a 2x2 matrix and the number of solutions

Determine whether or not a linear system $A\vc{x}=\vc{b}$ has a unique solution by calculating the determinant of $A$. If the system doesn't not have a unique solution, determine whether it has zero or an infinite number of solutions.

#### Points and due date summary

Total points: 1
Assigned: Jan. 23, 2017, 11:15 a.m.
Due: Feb. 1, 2017, 11:59 p.m.