Exponential Growth And Decay Equation Worksheet With Answer Key Page 4

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Answers
( )
x
2. y = 2 ! 3
x
y =
4
1.
1
2
y
y
24
21
18
15
12
9
5
6
3
x
x
-18-15-12 -9 -6 -3
3 6 9 12 15 18
-5
5
( )
y =
x
x
3.
5(1.2)
y =
4.
10
2
3
y
y
5
5
x
x
-5
5
-5
5
5. ! 883
6. $184,274
7. $15.84
8. $7920
9. $1.92
10. $4169
11. ! 5 years
12. ! 24 years
13. 5%, $26,600
14a. 8%, 1.08
b. $277.64
c. $55.15
b.
15a. M: y = 19000(.9)
c. about 3 years
x
value ($)
F: y = 11500(1.06)
x
Mustang
10000
Miata
5000
time (years)

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