Exponential Equations Notes

We did a lot of work on Exponential Functions
We applied the General y = a x b ^x function to a number of different situations

Recall that in all of these the common ideas of

a = the initial value:

• maybe for bacteria it is the initial number of bacteria, 
• for financial situations the Principal (or initial) investment

b = the rate of growth or change:

• doubling b = 2
• growth by % in financial situations b = 1 + i, where i is the interest rate/100
• growth by % in financial situations where there are compounding periods 
• divide the annual interest rate by the number of compounds per year

x = the number of times the event occurs 

• bacterial growth hours or 
• total number of compounds  = years x # compounds per year

There is a lot of homework

Check the HW chart on the first Blog post from June