1.
Which equation represents exponential growth?
A.
y
= 9(0.5)
x
B.
y
= 6.38(1)
x
C.
y
= 3.96(0.65)
x
D.
y
= 2.03(5)
x
Hint
2.
Which expression increases most quickly?
A.
x
+ 2
B.
2
x
C.
x
2
D.
2
x
Hint
3.
Which situation describes the expression
2?
A.
a coin collection where 2 coins are added each month
B.
areas of various rugs with side length
t
for the rug at stage
t
C.
the air temperature when a cold front moves into the area and the temperature falls 2?every half hour
D.
the population of a city that doubles every 10 years
Hint
4.
What is the value of 5
x
when
x
= 5?
A.
5
B.
3125
C.
25
D.
10
Hint
5.
Which table describes exponential decay?
A.
B.
C.
D.
Hint