3 More Things for Chapter 4

Just to address a few final questions and make sure you are prepared for tomorrow you get a bonus post this week.  My goal is to have about one weekly (usually on the weekend).  This post will address two questions and provide a link to a google document that has our more recent assignments (due tomorrow) and a short study guide.  But basically, be sure you can do anything from Chapter 4 but you probably will not have to graph inverse functions.

3 Things

• One common question asked during class today and yesterday:  "Do I need to know how to do the inverses" Answer:  Yes, look back at that section, do the practice test problems, and the chapter review questions.  The key approach is to ask yourself when you see Arcsin (?)  is:   "What angle (or input) will result in a sine of ? "  Remember, to inverse something is to undo it.  We used it when we did the ferris wheel task when solving an equation for to determine an input time to find a height of 40 meters.
• Second common question: "How do I decide what points to graph when there is a phase shift, etc."   Good question and the answer is you have to determine the period, use our "Rule of 4" and then think about what the phase shift does (adjusts your entire graph).  The first question of the review homework was a good one to address that.  When you practice you will find it involves do a little "fraction work".   Practice until you are confident.
• Third thing - I experimented with a google document to write out all our recent assignments and it can be accessed at https://docs.google.com/document/d/1Ixg7oo1sDlLOmFiSPnAOpOgS5laJ4rvx7Su-839PluE/edit  It summarizes the objectives of what we have learned and lists the page/problem #'s.

Ultimately, I want to hand off more responsibility to you to use google documents or some other technology tool to create your own study guide and for us to track what is due.  Any volunteers?