Module 11 — System of Equations
Use this if solving graphically, elimination, augmented matrices, and Gauss-Jordan are all competing.
Two equations in two unknowns can be solved graphically or by elimination.
Put the coefficients and constants in the same row-column positions.
Gauss-Jordan aims for a reduced form that exposes the solution.
What does an augmented matrix represent?
A system of equations: coefficients and constants arranged in rows.
Got it now? Scroll back up and re-read the section — it should land differently.
Counts and mappings come from .ai/students/alaina/math1330/assignments/index.json. These are task maps, not answer keys.
| WebAssign set | Questions | Textbook sections |
|---|---|---|
| 1330 W - Sys Eqn | 20 | §4.1, §4.2, §4.3 |
| 1330 W - Gauss | 40 | §4.1, §4.2, §4.3 |
Solve a system of two linear equations in two unknowns graphically.
Use the elimination method.
Represent systems with augmented matrices.
Apply elementary row operations.
Use Gauss-Jordan elimination.
Formulate systems from applied problems and interpret underdetermined or overdetermined systems.
