Solving+Systems+of+Linear+Equations+Set+6

Two equations – graphically, substitution, elimination

When is there no solution and what is the graphical significance?

When are there infinitely many solutions (and how do we specify exactly which solutions we mean)?

Cramer’s Rule:

Matrix equations and inverses (how do we tell when two matrices are inverses?)

Given three points on a quadratic function, how can we use our techniques for solving a system of equations to find the function in standard form?