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Mathematics 8 Online
OpenStudy (anonymous):

Can a linear function have a domain of all real numbers?

OpenStudy (mertsj):

Can you write an example of a linear function?

OpenStudy (anonymous):

y=2x+3

OpenStudy (mertsj):

Is there any value of x that would cause the y value to be undefined?

OpenStudy (anonymous):

i don't think so

OpenStudy (mertsj):

Then I guess x can be any real number you please and therefore the domain is all real numbers.

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