• Old business: If you haven’t already seen this from PatrickJMT, a nice video on finding domain and range for a function defined by a graph.
Topics of today:
• More practice with the graphing calculator: changing the window size, zooming, making the window “square”.
• Finding the zeroes (x-intercepts of the graph) of a function using the “zero” function
I am having trouble uploading my handouts. I hope to fix this soon, but in the meantime I will post them on Piazza.
Also, here’s a video for finding zeroes of a function (or x-intercepts) using the “zero” function on TI-84plus
(What we did today, following the same steps as on the handout I gave you.)
Homework:
• Go through Session 4, with your graphing calculator in hand, and work all the examples through Ex. 4.6(b) along with the book. Make sure that you can do all the things described in the examples.
• Fill out the outline notes “Graphing calculator basics” based on what you did. Also fill out the two examples on the 2nd page (if you did not do so in class).
• There is no WeBWorK on these topics. Make sure that you do the exercises in the textbook, Exercises 4.1, 4.2 (a), 4.3 (c)-(i)
• The quiz on Monday will be on functions defined by formulas and functions defined by graphs, Session 3. Make sure that you have done the textbook exercises 3.1 (a)-(b), 3.2, 3.4 (a)-(f), 3.6 (a)-(f), 3.7 (a)-(g) and (m)-(t), 3.8, 3.9
• Don’t forget that Test 1 is scheduled for Wednesday 27 September, the first hour or so of class. Read the course policies on tests, please. Review self-tests and answers are in a separate post.
Don’t forget, if you get stuck on a problem, you can post a question on Piazza. Make sure to give your question a good subject line and tell us the problem itself – we need this information in order to answer your question. And please only put one problem per posted question!
