4.1/4.2 Exponential Growth/Decay

Question 1

b>0 is

Answer 1

growth factor

Question 2

b= (growth)

Answer 2

1+r

Question 3

r

Answer 3

growth/decay rate

Question 4

exponential growth: b

Answer 4

b>1

Question 5

passes through points

Answer 5

(0,1) and (1,b)

Question 6

a line that a graph approaches more and more closely but should not be crossing

Answer 6

asymptote

Question 7

domain and range

Answer 7

(-oo, oo) and

0,oo

Question 8

formula

Answer 8

y=ab^x-h +k

Question 9

k (shift)

Answer 9

vertical

Question 10

h (shift)

Answer 10

horizontal

Question 11

0<b></b>

Answer 11

decay factor

Question 12

b= (decay)

Answer 12

1-r ; decay rate

Question 13

how else can exp growth/decay be expressed

Answer 13

y=a(b)^x

Question 14

exp decay: b

Answer 14

0<b></b>

Question 15

A

Answer 15

yeild

Question 16

P

Answer 16

principal

Question 17

n

Answer 17

of times compounded

Question 18

r

Answer 18

annual rate

Question 19

t

Answer 19

time

Question 20

compound interest formula

Answer 20

A=P(1+r/n)^nt

Question 21

order of compound interest formula solving (showing work)

Answer 21

1. formula
2. substituted formula
3. answer

Question 22

exponential growth model

Answer 22

y=a(1+r)^t ;

b>1

Question 23

exponential decay model

Answer 23

Y=a(1-r)^t ;

0<b></b>

Question 24

in a model, never do what

Answer 24

put a # in for t

Question 25

a>0 is

Answer 25

initial amount