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Mathematics 11 Online
OpenStudy (anonymous):

how do i find the domain of two functions

OpenStudy (jamesj):

the domain is where the function 'makes sense'. For example the domain of f(x) = sqrt(x) is x greater than or equal to zero. So it depends on the functions.

OpenStudy (anonymous):

f(x) = x^5 g(x) = x-3

OpenStudy (anonymous):

either is greater than 3 x cannot equal 3 x cannot equal -3 or is a real number

OpenStudy (anonymous):

The domain of f(x) is \[(-\infty, \infty)\] and the domain of g(x) is \[(-\infty, \infty)\].. There is no special restrictions on these two functions.. By special restrictions i mean like dividing by 0 or having a negative number inside a square root.

OpenStudy (anonymous):

so x is a real number

OpenStudy (anonymous):

x can be any number

OpenStudy (anonymous):

any real number*

OpenStudy (anonymous):

word thanks

OpenStudy (ybarrap):

find the all the inputs of the function that map to the function's output, These inputs are the domain.

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