Washer Method: Revolving Around Other Axes
AP Calculus BC · Flashcards
AP CALCULUS BC · FLASHCARDS
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QUESTION
Identify the formula for the solid's volume when
y
=
3
x
y = 3x
y
=
3
x
and
y
=
0
y = 0
y
=
0
are revolved around
y
=
−
1
y = -1
y
=
−
1
.
QUESTION
What is the modified formula for revolving around a horizontal line
y
=
k
y = k
y
=
k
?
QUESTION
State the bounds
a
a
a
and
b
b
b
for
y
=
f
(
x
)
y = f(x)
y
=
f
(
x
)
from
x
=
1
x = 1
x
=
1
to
x
=
3
x = 3
x
=
3
.
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ANSWER
a
=
1
a = 1
a
=
1
,
b
=
3
b = 3
b
=
3
. Integration bounds match the given
x
x
x
-interval from 1 to 3.
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