Domain of g(x): [-1,2) | Calc Homework Question

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In summary, the domain of g(x) is the set of all possible input values for the function, which is [-1, 2). To determine the domain of a function, you need to consider any restrictions on the input values. The notation [-1, 2) indicates a closed interval, with the endpoint -1 included and 2 not included. The domain of a function can be infinite if there are no restrictions, but in this case it is finite. The domain and range of a function are different concepts, with the range being unspecified for g(x).
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Homework Statement


I have a review in Calc and the question was:
f(x) has a domain of [-1 , 5) Find the domain of g(x) = f(2x+3)



Homework Equations





The Attempt at a Solution


I got [-1 , 2)
 
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  • #2
If x=-1, then 2x+3=_______?
If x=2, then 2x+3=________?

Does that agree with the domain of f?
 
  • #3
For what value of x is 2x+ 3= -1? For what value of x is 2x+ 3= 5?
 

FAQ: Domain of g(x): [-1,2) | Calc Homework Question

What is the domain of g(x)?

The domain of g(x) is the set of all possible input values for the function. In this case, the domain is [-1, 2), which means that the function can take on any value from -1 up to, but not including, 2.

How do you determine the domain of a function?

To determine the domain of a function, you need to consider any restrictions on the input values. In this case, the notation [-1, 2) indicates that the function is defined for all values from -1 up to, but not including, 2. So the domain is all real numbers between -1 and 2.

What does the notation [-1, 2) mean in the domain of g(x)?

The notation [-1, 2) indicates a closed interval, meaning that the endpoints (in this case, -1 and 2) are included in the domain. However, the use of a parentheses instead of a bracket on the right endpoint indicates that the endpoint is not included in the domain.

Can the domain of a function be infinite?

Yes, the domain of a function can be infinite if there are no restrictions on the input values. However, in this case, the domain is finite because it is defined within a specific interval.

Is the domain of a function the same as the range?

No, the domain and range of a function are two different concepts. The domain is the set of all possible input values, while the range is the set of all possible output values. In this case, the range of g(x) is not specified, so it could be any set of real numbers.

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