4.1/4.2 Exponential Growth/Decay Flashcards
1
Q
b>0 is
A
growth factor
2
Q
b= (growth)
A
1+r
3
Q
r
A
growth/decay rate
4
Q
exponential growth: b
A
b>1
5
Q
passes through points
A
(0,1) and (1,b)
6
Q
a line that a graph approaches more and more closely but should not be crossing
A
asymptote
7
Q
domain and range
A
(-oo, oo) and
0,oo
8
Q
formula
A
y=ab^x-h +k
9
Q
k (shift)
A
vertical
10
Q
h (shift)
A
horizontal
11
Q
0<b></b>
A
decay factor
12
Q
b= (decay)
A
1-r ; decay rate
13
Q
how else can exp growth/decay be expressed
A
y=a(b)^x
14
Q
exp decay: b
A
0<b></b>
15
Q
A
A
yeild
16
Q
P
A
principal
17
Q
n
A
of times compounded
18
Q
r
A
annual rate
19
Q
t
A
time
20
Q
compound interest formula
A
A=P(1+r/n)^nt
21
Q
order of compound interest formula solving (showing work)
A
- formula
- substituted formula
- answer
22
Q
exponential growth model
A
y=a(1+r)^t ;
b>1
23
Q
exponential decay model
A
Y=a(1-r)^t ;
0<b></b>
24
Q
in a model, never do what
A
put a # in for t
25
Q
a>0 is
A
initial amount
