Thursday, September 16, 2010

Here is the assignment for Dr. Holland's class for September 17, 2010:

Please work with a partner or alone (no groups of 3 – 1 or 2 only) to make a mini-poster (just use a sheet of blank paper) explaining one of the topics below.

Notes:
  • This is due at the end of class today.
  • No more than 2 people per topic – write your name next to the one you choose, to claim it. They are equally difficult, more or less, so no rushing the table.
  • Use the calculators, rulers, markers, whatever on the table – just be sure to return it all to its proper place.
  • You will be graded on accuracy and clarity. If you are unsure about anything in your topic, look it up in a textbook (shelf by the door) or online, or ask a classmate to help you. The poster should be clear enough that we can put it on the wall and visitors to our room will understand immediately.
  • All posters should include both written explanations and pictures/graphs, properly labeled.

Topics:                                                                                               
1. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=1/x.
2. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=|x|.
3. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=ex.
4. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=ln(x).
5. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=2x.
6. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=log10(x).
7. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using y=x2.
8. Explain all of the transformations (up/down, left/right, stretch/shrink, reflect over x or y), using the y=x3.
9. Explain domain and range, using the following functions: y=ex, y=ln(x), and y= -|x| + 6.
10. Explain domain and range, using the following functions: y=1/(x-3) + 5, y=(x+2)2 – 3, and y=|x| - 7.
11. Explain domain and range, using the following functions: y=2/x - 4, y=0.5x2 + 1, and y=x3.
12. Explain piecewise functions and discontinuities, using the functions
f(x) = int(x) and g(x) =        x2    if x<-1
                                         3     if -1≤x<3
                                         x     if x≥3          
13. Explain piecewise functions and discontinuities, using the functions
f(x) =        -2x+5 if x<-2      and g(x) =       3x+2     if x<-4
                 x3     if x≥-2                             -x -14    if x≥-4   
14. Explain piecewise functions and discontinuities, using the functions
f(x) =        x2            if x<0      and g(x) =        4x - 2    if x< 2
                 1/(x+1)    if x>0                               6x - 5     if x≥2           
15. Explain piecewise functions and discontinuities, using the functions
f(x) = int(x) – 2        and g(x) =      3x - 2      if x<-1
                                                    -x + 5     if -1≤x<3
            



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