## Wednesday, April 15, 2009

### April.15/09

heeey guys!

For today's class, we all worked long and hard on a handout called "exponential equations exercises". Unfortunately, Mr.k wasn't able to enlighten us with his presence today, WHERE DID YOU GO MR.K?!, but luckily we had a substitute, Mr.N, for guidance!

From questions 1-10 on the handout, it was pretty straight forward, questions 11-24 were more interesting. As a class, we decided to leave question 21, 22 and i think 24 for Mr.K to explain. (Some of us got the correct answers, but not with the methods Mr.K would probably recommend.)

Before you get started...
Things to remember:
• Change the terms so they all have the same base.
• Multiplying powers with the SAME BASE = adding exponents.
• Dividing powers with the SAME BASE = subtracting exponents.
• Powers with negative exponents = reciprocal of the number. Example: 1/5 = 5^-1
• Square roots = are fractions.(such horrible wording xD) example: \sqrt[5]{a} is the same as a^1/5

If there's any questions or problems, i'll try my best to resolve/fix them.
**the answer for 24 is not -1/2, but -1 and 2. i'll upload a writen soultion later. thanks sheldon!

ohh and before i forget! There wont be any slides from today's class. I guess we decided to pull old-school and dusted out the white bored BOARD. haha spelling errors are always on purpose. :D
Today was a pretty productive class, don't you think?

mary~

and because i had ginger ale, next scribe will be ale! :D

1. I see you had troubles with last one so I'll just tell you the answer. You can figure out the rest :D. The value of x is 2 for number 24.

2. :o and lol did you forget how to spell BOARD? or was that on purpose :P

3. LOL! nice very short post for a very productive class! it pretty much sums ups what we did (and it wasn't very much) so it's all good.

LOL! wrong "board" btw.

~jayp~

4. good job !! and there are 2 values for x for 24. They are -1 and 2 =D

5. HA HA HA, that spelling error was so on purpose. nothing gets pass you guys ***rolly eyes xD

but thanks, i'll make the changes. :D