inequalities

Today, we talked about number lines, and inequalities. speaking about how to tell whether we need an open dot or a closed dot, and how to determine where to place that dot on a number line. We learnt about single variable inequalities.
At the 18 minute mark in the video, we switched over to double variable inequalities, learning how to put them into a calculator, and the difference between knowing which area needs to be shaded. We were also shown how graphmatica displays these questions, and we learnt why they are shown the way they are.

Here is the video for the days class.