142 views
1) Connection with linear functions 2) System of two linear equations in two unknowns Example 1: A single root (the lines are different) – in GeoGebra Example 2: No root (the lines are parallel and different) – in GeoGebra Example 3: Infinitely many roots (the lines are identical) – an example of the geometric meaning of writing the set of roots in GeoGebra 3) System of two linear inequalities in two unknowns – Example 4: construction of a boundary line – in GeoGebra choosing the correct half-plane intersection of half-planes + taking into account the boundaries (fuzzy vs. sharp inequality)