What stood out to me this week was plotting quadratic inniqualitys with 2 variables. This means instead of just on the x axis we are now on x and y axis creating diagonal and vertical lines. We also have to shade one side of the line.
here are some examples
In the first example you can see the line is dotted witch means that the symbol is either <or> and on the second one the line is solid witch means the symbol is either (greater than or equal) or (less than or equal to).
these are those symbols
The possible out comes are