Interpreting Functions - think about a linear graph.
Desmos linear bundle of activities
Desmos systems bundle of activities
Graphing and Writing Linear:
Solving Systems of Linear Eq
Linear Functions
PHET simulation - Function Builder - great intro
Solving Linear Systems (Slope-Intercept Form)
Solving Linear Systems (Standard Form)
Cat and Mouse (Modeling with Linear Systems)
Solving Linear Systems (Slope-Intercept Form)