Overview:

Quarter 3 focuses entirely on linear relationships, starting with linear equations in one variable where you find a single number solution. This leads to linear inequalities in one variable, which give a range of answers that are graphed on a number line (and remember to flip the inequality sign when using negative numbers). The course then shifts to the coordinate plane with linear equations in two variables like y=mx+b, which are graphed as straight lines using the slope and y-intercept. Next, you will learn to solve systems of linear equations in two variables using graphing, substitution, or elimination to find the single point (x, y) where two lines intersect. The quarter concludes with linear inequalities in two variables, where the solution is not a line, but an entire shaded region on the graph.