Determining the Line of Symmetry for Parabolic Functions

Today, we spent some time pulling together a few different thoughts on how b impacts the graph of a quadratic equation. Students understood that the b term somehow moved the parabola sideways, but it wasn't as predictable a shift as were the a and c shifts. We derived the equation for the line of symmetry (x=-b/2a) and then discovered the vertex is always on the line of symmetry.

Please refer to pages 168 and 169 in the home book for more information on this.

Tonight's Homework: Home Book page 170 (1-16).