Session 2 - 1/28/2010

This week's session began with review of last session's topics. Members were asked to:
1. Graph and show an accurate picture of y = x^2 - 4x - 480.
2. Add the line: y = -10x - 48 and find the point of intersection, using the CALC function and the table.
3. Use the TRACE key to state 2 points on the line.
4. Change table settings to appropriate values for a t-chart for the parabola.
5. Use CALC to find the turning point of the parabola.
6. Find one "zero" of the parabola.
7. Given: y = -x^2 + 5x + 50. Find the turning point from CALC and table.

Topics covered after the review were:
1. Graphing over a specified interval using / in the y = and the TEST & LOGIC functions
2. Using the TEST function to test the equality of two expressions.
3. Storing a value for a variable.
4. Evaluating expressions using the STO function
5. Shading and the different line styles
6. Ways to check whether a quadratic has been factored correctly: TEST, graph, table
7. Generating a set of random integers and ensuring the "seed" is set beforehand.

These sessions have already been beneficial. One member's students are collecting data to analyze with regression and the graphing calculator. NICE!

Our next session will be on statistics and lists.