● Identifying corresponding and alternate angles
● Finding angle measures given two parallel lines cut by a transversal
● Solving equations involving angles and a pair of parallel lines
● Solving equations involving angles and two pairs of parallel lines
● Establishing facts about the angles created when parallel lines are cut by a transversal
● Constructing a pair of perpendicular lines
● Constructing a pair of parallel lines
● Introduction to proofs involving parallel lines
● Proofs involving parallel lines
● Graphing a linear equation of the form y = mx
● Classifying slopes given graphs of lines
● Finding slope given the graph of a line on a grid
● Finding slope given two points on the line
● Rewriting a linear equation in the form Ax plus By = C
● Finding the slope and y-intercept of a line given its equation in the form y = mx plus b
● Writing an equation in slope-intercept form given the slope and a point
● Finding slopes of lines parallel and perpendicular to a line given in slope-intercept form
● Identifying parallel and perpendicular lines from equations
● Writing equations of lines parallel and perpendicular to a given line through a point
● Identifying parallel and perpendicular lines from coordinates
● Graphically solving a system of linear equations
● Solving a system of linear equations of the form y = mx plus b