Discussion 4: Math
Forum #4: Ch. 4 Applications & Ch. 5 Polar Coordinate System
Participation: Choose from the following. Answer in complete sentences so we can follow the discussion. Two posts required for full credit.
Internet Exploration: Post link and write a brief summary (1-2 sentences) of the content of the site. Search for LAW OF SINES, LAW OF COSINES, HERONS FORMULA, POLAR COORDINATES, CARDIOIDS, POLAR GRAPHS … or other topics for these chapters.
Note: Use your TI-83/84 in MODE: POLAR to graph the polar functions. Trouble with your TI? This link has step-by-step instructions: http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetId=103204 You can enter your own bounds in the Window; or as I prefer, use ZOOM 7:ZTrig or 6:ZStandard or 0:ZoomFit. Post a link to a website with information on using the TI-83/84 to graph polar equations, or share your experience with graphing.
Guided Notebook: Scan and post an image of one correctly completed page of the Guided Notebook from this chapter. ***Credit only if you are the first to post the page OR if your page corrects an error on a previously posted page. Also credit is given if your page demonstrates a different method or original drawing.***
Respond (Sections 4.1): Make two sketches (scan and post) that illustrate your understanding of heading and bearing. There are two ways to express location: one pole called “heading” and two poles called “bearing.” In both cases there must be a reference point that is considered fixed for the moment. See the example attached. Here are some suggestions.
(a) Ship traveling north parallel to shore sights a lighthouse at 300 degrees and a sailboat at 75 degrees.
(b) Ship traveling north parallel to shore sights a house at 200 degrees and a lifebuoy at 25 degrees.
(c) Ship traveling north parallel to shore sights a hotel at 330 degrees and a surfer at 90 degrees.
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