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Functions & Graphs -Function Rules
Question: Which of the following function rules describes the number of centimeters as function of the number of meters?
A )
f
(
x
) = 50
x
B )
f
(
x
) = 0.01
x
C )
f
(
x
) = 100
x
D ) None of the above
Steps to derive
1
Let
x
be the number of meters.
2
Let
f
(
x
) be the number of centimeters to
x
meters.
3
One meter is equivalent to 100 centimeters.
4
x
meters is equivalent to 100
x
centimeters
5
So, the function rule is
f
(
x
)= 100
x
.
Hence the right answer is Option C
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