in Context Quick Check

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Question
Given that f(x)=6x2−2x
and g(x)=2x
, what is the domain of (fg)(x)
?(1 point)
Responses

the set of all real numbers
the set of all real numbers

the set of all real numbers except x=0
the set of all real numbers except x is equal to 0

the set of all real numbers except x=13
the set of all real numbers except x is equal to 1 third

the set of all real numbers except x=0
and x=13

1 answer

To find the domain of the product of the functions f(x)=6x22x and g(x)=2x, we first need to consider the domains of each individual function.

  1. Domain of f(x): The function f(x)=6x22x is a polynomial function, which has a domain of all real numbers, R.

  2. Domain of g(x): The function g(x)=2x is also a polynomial function, which has a domain of all real numbers, R.

  3. Domain of (fg)(x): The product of two functions, (fg)(x)=f(x)g(x), will have a domain that includes all values where both functions are defined. Since both functions f(x) and g(x) have a domain of all real numbers, their product (fg)(x) will also have a domain of all real numbers.

Therefore, the answer is:

  • The set of all real numbers.
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