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Mathematics
Mathematics
Problem
Consider
x
(
t
)
=
t
2
x(t)=t^{2}
x
(
t
)
=
t
2
and
y
(
t
)
=
t
3
y(t)=t^{3}
y
(
t
)
=
t
3
for
−
4
≤
t
≤
4
-4\le t\le 4
−
4
≤
t
≤
4
. Identify the interval(s) of
t
t
t
on which the curve is concave up.
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