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Mathematics
Problem
The curve given implicitly by
x
2
y
+
y
3
=
8
x^{2}y + y^{3}=8
x
2
y
+
y
3
=
8
contains a branch with
y
>
0
y>0
y
>
0
for
−
1
<
x
<
1
-1<x<1
−
1
<
x
<
1
. For this branch, determine on which of the intervals
(
−
1
,
0
)
(-1,0)
(
−
1
,
0
)
and
(
0
,
1
)
(0,1)
(
0
,
1
)
the function y(x) is increasing and on which it is decreasing.
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