IB Mathematics Applications and Interpretation Quiz
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CALCULUS
Question 1
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PASSAGE
The displacement of a particle from an origin is given by
s
(
t
)
=
t
3
−
9
t
2
+
24
t
−
1
s(t) = t^3 - 9t^2 + 24t - 1
s
(
t
)
=
t
3
−
9
t
2
+
24
t
−
1
for
t
≥
0
t \ge 0
t
≥
0
.
For what values of
t
t
t
is the particle moving in the positive direction?
A
2
<
t
<
4
2 < t < 4
2
<
t
<
4
B
t
=
2
t=2
t
=
2
and
t
=
4
t=4
t
=
4
C
0
≤
t
<
2
0 \le t < 2
0
≤
t
<
2
or
t
>
4
t > 4
t
>
4
D
t
<
2
t < 2
t
<
2
or
t
>
4
t > 4
t
>
4
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