11/12/09

Today we spent the first half of class working on our supercorrections that are due on Friday. Then we began talking about the properties of exponents. We went over basic rules such as a power times a power you add the exponent; a power divided by a power you subtract the exponents; and a power to a power you multiply the exponents. Using these properties we then revised the homework on the board. Then we took a look at the exponential Function: f(x)=a^x. Then using both grapher and our GDC's, we graphed the exponential functions a= 1/2, 2, e, 3. Then using GeoGebra we graphed a family of exponential function. We figured out that A must be greater than zero and cant be equal to one, because one to any power is one which graphs as a line. Other properties we found were that the Y intercept is 1, when 0 < a < 1 a > 1 it's increasing.


Homework
Finnish supercorrections for Friday 11/13/09
Finnish Mystery Function for Monday 11/16/09
Do the following book problems for Monday 11/16/09
P. 226/ 7-11, 15, 19, 27, 33, 45-51 odd, (55, 59 formula on page 224)

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