Interpret Exponential Functions and Growth Rate
Algebra · Flashcards · Application
ALGEBRA · FLASHCARDS
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QUESTION
Identify the percent rate of change per period for
y
=
a
(
1
+
r
)
t
y=a(1+r)^t
y
=
a
(
1
+
r
)
t
when
r
=
0.12
r=0.12
r
=
0.12
.
QUESTION
Classify
y
=
8
⋅
(
0.98
)
t
2
y=8\cdot(0.98)^{\frac{t}{2}}
y
=
8
⋅
(
0.98
)
2
t
as exponential growth or decay.
QUESTION
Identify the percent increase per period for
y
=
a
(
1.2
)
t
y=a(1.2)^t
y
=
a
(
1.2
)
t
.
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ANSWER
20
%
20\%
20%
increase per unit
t
t
t
. Rate
r
=
1.2
−
1
=
0.2
=
20
%
r = 1.2 - 1 = 0.2 = 20\%
r
=
1.2
−
1
=
0.2
=
20%
increase.
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