Function Notation Answers

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

g(x) is the multiplication of g and x.

–2x2 +5 is the input of the function.

The variable x represents the independent variable.

The variable g represents the input of the function.

f(x) = –2 when x is .

–4

Which range values would not make sense for this function?

negative values

positive values

values between 0 and 2008

Would the graph be continuous or discrete, and why?

continuous, because number of bobcats can be broken into fractional parts

continuous, because time can be broken into fractional parts

discrete, because number of bobcats cannot be broken into fractional parts

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

f(1) = –2

f(–2) = –2

f(–2) = 1

What does t represent?

the number of bobcats since 2008

the number of years since 2008

the year 2008 in Arizona

What is the domain for this function?

t values less than or equal to 2008

t values greater than or equal to 0

t values greater than or equal to 0 and less than or equal to 2008

Did you find these answers helpful?

More from this Course

Function Notation

Evaluating Functions

Function Notation