Exponential Function Context and Data Modeling
AP Precalculus · Flashcards · Application
AP PRECALCULUS · FLASHCARDS
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QUESTION
Is
f
(
x
)
=
1
×
(
0.5
)
x
f(x) = 1 \times (0.5)^x
f
(
x
)
=
1
×
(
0.5
)
x
growth or decay?
QUESTION
For
f
(
x
)
=
6
×
0.5
x
f(x) = 6 \times 0.5^x
f
(
x
)
=
6
×
0.
5
x
, what is the decay factor?
QUESTION
Calculate decay rate if
b
=
0.9
b = 0.9
b
=
0.9
in
f
(
x
)
=
a
×
b
x
f(x) = a \times b^x
f
(
x
)
=
a
×
b
x
.
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ANSWER
10%. Decay rate is
(
1
−
0.9
)
=
0.1
=
10
%
(1 - 0.9) = 0.1 = 10\%
(
1
−
0.9
)
=
0.1
=
10%
.
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