Arithmetic and Geometric Sequences

A sequence is an ordered list of terms and elements. The two general forms of a sequence is arithmetic and geometic.

• Arithmetic Sequence: An= A1+(n-1)d

                  d=An-A(n-1)

• Geometric Sequence: An= A1 r(n-1)

                  r= An/An-1

Compound Interest Formula

Formula:
A=P(1+r/n)nt 

• N- Number of times compounded
• P- Principle 
• R- Rate
• T- Time

Exponential Growth and Decay

A=P(1+r)t                
R= Rate
T= Time in years

Growth-> 1+r
Decay-> 1-r

To chance a number to a decimal:
Move the decimal two places to the left.

This graph is an example of exponential growth.

This graph is an example of exponential decay.