Standard Form – We learned to write and graph linear equations in standard form. We discovered that the standard form of a linear equation is helpful for identifying the x- and y-intercepts. These are used to graph the line and aid in understanding the constraints within a real-world context.
Parallel and Perpendicular lines – We learned to write equations to represent lines that are parallel and perpendicular to a given line. We graphed lines to show an understanding of the relationship between the slopes of parallel and perpendicular lines. Then we solved real-world problems that involve parallel and perpendicular lines.