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.

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