Friday, August 31st, 2007

Algebra II: Fire drill slowed us down in class, so there is homework: P. 14, #26-28, 34-36, 43-45, 52-54. I will be collecting this first thing on Tuesday, so be sure to have it done!

Elementary Functions: Domain is the set of all x values, or the input for the function. The range is the set of all y values, or the output of the function. Remember which door you came in on the first day and how you decided which door to go in -- all functions work this way. If you are in the domain (the set of acceptable values for x) you have one and only one clear path or value (the output of the function). The function will let you know if you are not in the domain by either not directing you to an output, or by giving you an error or invalid operation (dividing by zero).

Note, I am using <= to mean less than or equal to, and >= for greater than or equal to. < still means less than and > still means greater than.

Homework was to graph the following function: f(x) =

x if 12<=x<=15
(1/2)x^2 if 3x^3 if x<-2
x^4 if 0(x+1)/(x-1) if 1log (x) if x>15
e^x if -2sqrt(x) if 10<=x<12




Thursday, August 30th, 2007

Algebra II: Homework is P. 6 #3-8, this should take you all of 5 minutes! Please take the time to go through this first section and look at the example problems on p.2 through 5. I do not generally go over these exact problems in class so that you can look at them for help with homework. Since I like to give quizzes on Fridays and we haven't had much class time together, I would be sure to look at examples 1 and 3 for tomorrow.


Elementary Functions: Today we talked about input and output of functions (domain and range) and classified coordinates as being natural numbers, integers, real numbers, imaginary numbers and rational numbers. Your assignment is to describe in words the domain and range of the following piecewise function:
3 if x>1
y =
4 if x<-1



Course syllabuses (http://en.wikipedia.org/wiki/Syllabus) are still to be posted -- I am looking for a good file repository to use (if you have a good suggestion, be the first to mention it to me for bonus points!). I have tried looking into google docs, geocites and this blogger account, but I need the ability to upload PDF and DOC files for you to download. Help?

Welcome Back!

I have my schedule for the 2007-2008 school year!!!

I can't wait to see you all in class



Semester I
A: Elementary Functions PSP
B: Algebra II (year)
C: Elementary Functions PSP

Semester II
A: Algebra I PSP
B: Algebra II (year)