We started by looking at the Friday Sheet.
With inequalities, the steps are basically
1. Use factoring/etc to find boundary points
2. Plot the boundary points with open or closed circles on a number line
3. Test a point in each of the three regions
Spent a bit of time plotting graphs. Even if you don’t really know the shape, you can plot points. It helps quite a bit to know the shape in advance though.
Reviewed the equation for the vertex of a parabola. x = -b/2a. And also reviewed where you see all of those letters in the general quadratic equation.