AnswersCUSD Math 01 A 5.0Function Notation

Function Notation Answers

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1
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What is true of the function g(x) = –2x2 + 5?

A
g(x) is the multiplication of g and x.
B
–2x2 +5 is the input of the function.
C
The variable x represents the independent variable.
D
The variable g represents the input of the function.
2
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f(x) = –2 when x is .

A
–4
B
1
C
4
3

Which range values would not make sense for this function?

A
negative values
B
positive values
C
values between 0 and 2008
4

Would the graph be continuous or discrete, and why?

A
continuous, because number of bobcats can be broken into fractional parts
B
continuous, because time can be broken into fractional parts
C
discrete, because number of bobcats cannot be broken into fractional parts
5

The ordered pair given in the first row in the table can be written using function notation as .

A
f(1) = –2
B
f(–2) = –2
C
f(–2) = 1
6

Andrea conducts a science experiment and observes that the height of a plant depends on the amount of sunlight it receives. The plant’s height is 37 centimeters, and it grows at a rate of 0.004 centimeter per hour of sunlight. If the number of hours of sunlight is represented by the variable s, which function can represent the height of the plant?

A
s(h) = 0.004h – 37
B
f(h) = 37h + 0.004
C
f(s) = 0.004s + 37
7

What does t represent?

A
the number of bobcats since 2008
B
the number of years since 2008
C
the year 2008 in Arizona
8

What is the domain for this function?

A
t values less than or equal to 2008
B
t values greater than or equal to 0
C
t values greater than or equal to 0 and less than or equal to 2008

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Function Notation Answers — CUSD Math 01 A 5.0