formulas Flashcards
1
Q
formula for compound interest
A
A=P(1+r/ n)nt
2
Q
formula for compound interest continuously
A
A=Pe rt
3
Q
exponential model
A
y=ab x
4
Q
how to find exponential model
A
doubles, triples, every hour etc
5
Q
A
A
initial
6
Q
r
A
percentage as a decimal
7
Q
t
A
time
8
Q
exponential growth model
A
y=a(1+r) t
9
Q
how to find exponential growth
A
grows at a rate of… next couple years..
10
Q
factor
A
(1-r) or (1+r)
11
Q
(decay) what’s the difference between rate and factor
A
rate is the percent taken and factor is what’s maintain each period
12
Q
decay exponential model
A
y=a(1-r) t
13
Q
how to plug into demos for exponential model
A
y1~ab power of x1
14
Q
weekly compound
A
52
15
Q
n
A
compounding periods per year