Today in class, we started by reading a blog post about security on the internet and setting up the class blog - which you can find here: preapcalcred0910.blogspot.com.
We also used the beginning of class to register everyone for the iCal program. You can find the iCal subscription code on the class website - math-ob.wikispaces.com.
We then did a homework check by answering two problems from our homework and turning that in on a separate sheet of paper. Mr. O’Brien went over the expectations for going over homework: list problems you want to discuss, going over problems on the board, talking to classmates, etc.
We put several of the homework questions on the board that the students needed help with and Mr. O’Brien corrected and explained all of them. We discussed how to find the midpoint of a line (as in page 10, #37C), finding perpendicular and parallel lines on a graph (as in page 35, #69 and 75), dividing by zero. We also went over how to operate our calculators.
#61 on p. 49, the answer in the back of the book, we changed to y is greater than or equal to 10 instead of 0
g(y) = the sqrt. of y2 - y -9
y2 - y - 9 greater than or equal to 0
There is a quiz next class (September 10). Be prepared.
Next Scribe: Anna Grigo
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