Friday, May 25, 2012

Friday, May 25

We reviewed randomly selected entry tasks from the last 10 weeks.

 No homework

Thursday, May 24, 2012

Thursday, May 24

We worked on effective interest rate, exponential growth and decay.

Homework: Optional - take a couple of exercises from 4.8 if needed

Wednesday, May 23, 2012

Wednesday May 23

Short cuts for compound interest and how to calculate interest when it is compounded more frequently than yearly.

 Homework: 4.7 27-33 odds

Tuesday, May 22, 2012

Tuesday May 22

Interested in interest? Hee hee. Math and finance humored combined.

 No homework.

Monday, May 21, 2012

Thursday, May 17, 2012

Thursday May 17

Today we condensed logarithms. Instead of spreading them out to make each log statement simpler, we shortened it into a single log statement.

Homework: 4.5 57-69 odds

Wednesday, May 16, 2012

Wednesday, May 16

Ohh yeah, I didn't give you enough information for #23 and 27. You need the change of base form. Here it is.

Homework: 4.5 45-55 odds 

Tuesday, May 15, 2012

Tuesday, May 15

Today we applied the three properties of logarithms to expand logarithmic expressions.

 Homework: Write a complete proof of rules #13 or #2 with support language 
                    4.5 13-27 odd, 37-43 odd 

Monday, May 14, 2012

Monday, May 14

I introduced the 3 basic properties of logarithms and proved the first one.

Homework: Prove the second property to be true following the logic of the proof from class.

Friday, May 11, 2012

Friday, May 11

I told a long story in class. It made me cry. I am getting old and soft. Anyway, there are some word problems at the end of section 4.4 to do.

 Homework:   4.4   117, 119-126

Thursday, May 10, 2012

Wednesday, May 9, 2012

Wednesday May 9

Today, we translated between log and exponential form. In addition, we evaluated logarithmic statements.

Homework: 4.4 9-35 odds

Wednesday, May 2, 2012

How do you solve an exponential equation? You can make the bases equal, the powers equal, or bust out a logarithm. The first two are dealt with here.

Homework: 4.2 61-79 odds



 
wed may 2 -

Tuesday, May 1, 2012

Tuesday, May 1

Today, we wrote exponential functions based upon two points on the graph. This is similar to finding the A value for polynomial and rational functions.  
Homework: the word problem at the end dealing with abandoned buildings in Detroit and writing an equation containing ((1, 10) and (7, 53)