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Mathematics 17 Online
OpenStudy (anonymous):

Find the domain of the function: f(x)=7x+4

OpenStudy (anonymous):

|dw:1349911178679:dw|

OpenStudy (anonymous):

all x

OpenStudy (anonymous):

Can you explain to me how you got that?

OpenStudy (anonymous):

the function is going to be defined at every point. plug in any number for x and you will always get an a number.

OpenStudy (anonymous):

for example sqrt{x} would be undefined at all x<0

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