How linear motion works.
How to determine the derivative of a linear function.
How to solve a linear equation in one variable.
How to solve linear inequalities.
How to solve for a parameter in a simple linear equation.
How to find a test score to keep the class grade at least 90%.
How to find the angles of a triangle by creating a linear equation.
How to solve a system of linear equations in two variables.
How to solve a system of linear equations in three variables.
How to convert a system of linear equations into a matrix equation and solve it.
How to solve a system of linear equations in three variables that yields no, or many solutions.
How to notate solving and graphing inequalities.
How to graph a first degree polynomial
How to solve a system of two linear equations with two unknowns using Cramer's rule.
How to write equations for and graph word problems.