Math Unit 7 formulas Flashcards
1
Q
y=a(1+r)^t
A
Exponential growth function
2
Q
t or x=
A
time
3
Q
r=
A
rate
4
Q
y=
A
final value
5
Q
a=
A
initial value
6
Q
A=
A
Final value
7
Q
P=
A
intial value
8
Q
n=
A
number of time periods
9
Q
y= a(1-r)^x
A
decay exponential equation
10
Q
A= P(1+rt)
A
simple interest formula
11
Q
A= P(1+r/n)^nt
A
Compound interest formula
12
Q
A1=_, an=r(an-1), n>=2
A
Recursive Geometric
13
Q
a1=_, an=an-1+d, n>=2
A
Recursive Arithmetic
14
Q
an=a1(r)^n-1
A
Geometric Explicit
15
Q
an=a1+(n-1)d
A
Arithmetic Explicit
16
Q
f(x)=+-ab^(x-h)+k
A
Exponential Transformations Equation
17
Q
h>0-shifts right
A
stuff to remeber (x-h)
18
Q
h<0 the function shifts left
A
(x+h)
19
Q
If k>1 function shifts
A
up
20
Q
If k<1 function shifts
A
down
21
Q
If a is negative,
A
reflection over x-axis
22
Q
a>1,
A
stretch
23
Q
0<a<1
A
shrink
24
Q
b>1
A
exponential growth
25
Q
0<b<1
A
exponential decay
