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Mathematics 20 Online
OpenStudy (anonymous):

What is the domain of the function f(x) = 2x + 5?

OpenStudy (gorv):

domain is what value we can take

OpenStudy (gorv):

so here any value of x we can take that is real number

OpenStudy (anonymous):

all real numbers except 2 all real numbers all real numbers except 5

OpenStudy (gorv):

wlcm to OS:)

OpenStudy (gorv):

u telll me the ans ??

OpenStudy (anonymous):

all positive real numbers

OpenStudy (gorv):

i said x=-2

OpenStudy (gorv):

you can take any value of x

OpenStudy (mayankdevnani):

@londob you can put any value of x and what value of x you put,is the domain of the function. and REMEMBER:- the value of x should be REAL NUMBER.

OpenStudy (gorv):

any means positve or negative

OpenStudy (mayankdevnani):

for more information, http://www.mathsisfun.com/sets/domain-range-codomain.html

OpenStudy (mayankdevnani):

understood? @londob

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