Modeling Periodic Phenomena with Trigonometric Functions
Precalculus · Flashcards
PRECALCULUS · FLASHCARDS
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QUESTION
What is the vertical shift of
y
=
A
sin
(
B
x
)
+
D
y=A\sin(Bx)+D
y
=
A
sin
(
B
x
)
+
D
?
QUESTION
Which function starts at a maximum when
A
>
0
A>0
A
>
0
and
C
=
0
C=0
C
=
0
: sine or cosine?
QUESTION
Choose the correct phase shift
C
C
C
for
y
=
4
sin
(
π
2
(
x
−
3
)
)
+
1
y=4\sin\left(\frac{\pi}{2}(x-3)\right)+1
y
=
4
sin
(
2
π
(
x
−
3
)
)
+
1
.
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ANSWER
C
=
3
C=3
C
=
3
. Phase shift is the value subtracted from
x
x
x
in the argument.
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