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1.6 Instantaneous Rates
Multiple Choice
Identify the choice that best completes the statement or answers the question.
A
B
C
D
1.
The slope of the tangent at the point indicated on the graph is
a.
c.
2
b.
1
d.
4
A
B
C
D
2.
The area,
A
, in square metres, of a circular oil spill after
t
min is given by
A
=
p
t
2
.
The instantaneous rate of change of the area of the oil spill after 2 min is approximately
a.
3.14 m
2
/min
c.
12.57 m
2
/min
b.
6.28 m
2
/min
d.
18.85 m
2
/min
A
B
C
D
3.
The number of people,
P
, at a playground after
t
min is given by
P
=
t
3
+ 4
t
+ 20..
The instantaneous rate of change of the number of people at the playground after 1 min is approximately
a.
5 people/min
c.
7 people/min
b.
6 people/min
d.
25 people/min