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Mathematics 7 Online
OpenStudy (anonymous):

What is the domain of the function? y = √4x - 4 A. x > -1 B. x ≥ 1 C. x ≥ -1 D. x ≥ 1

OpenStudy (shamim):

the value of x is called domain

OpenStudy (anonymous):

Yes, the domain are your x values.

OpenStudy (shamim):

option B nd option D are same?!

OpenStudy (anonymous):

Yeah, just an accidental repeat by my teacher or something. Sorry about that

OpenStudy (shamim):

i think ur equation is y=√(4x-4)?

OpenStudy (shamim):

its ok. no problem. just say something to follow us

OpenStudy (shamim):

if 4x-4<0 then wt will b the value of y

OpenStudy (ciarán95):

The restriction on the values of x which we can enter into this function and get a value out for y lies in the square root: \[\sqrt{4x-4}\] Here we cannot get the square root of a negative number, so 4x - 4 >= 0 This only occurs if x is >= 1 (B.).

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