Section 4.8 [ATTACH=full]1214[/ATTACH] [ATTACH=full]1215[/ATTACH] [ATTACH=full]1216[/ATTACH]
I don't recall doing any of this stuff back in my 1993 precalculus course MA172. It was an evening course. We met twice per week for 90 minutes. The professor was actually a graduate student working on his PH. D. He was an outspoken person, a bit chubby and easy-going.