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Mathematics 4 Online
OpenStudy (anonymous):

PLEASE HELP ME

OpenStudy (anonymous):

OpenStudy (anonymous):

@iGreen. @joyraheb

OpenStudy (anonymous):

Functions need only one value of 'x'..so which one has more than one value of 'x'?

OpenStudy (anonymous):

You got it?

OpenStudy (anonymous):

Look at the 'x' values for each table, see which one has a repeat.

OpenStudy (anonymous):

Well, function is a special case of relation, which generates a single output for every given input. So basically, if the same x value could generate different y values then it is not a function of x. It could still be a function of y, so you have to check it for y as well.

OpenStudy (anonymous):

D?

OpenStudy (anonymous):

No, the x-values in D are -8, -4, -2, and 1 None of these are the same, so it is a function

OpenStudy (anonymous):

You got it yet?

OpenStudy (anonymous):

Tell me the x-values in the first table. @roses_red

OpenStudy (anonymous):

B

OpenStudy (anonymous):

No

OpenStudy (anonymous):

Tell me the x-values in the first table. @roses_red

OpenStudy (anonymous):

oh thanks I got it

OpenStudy (anonymous):

No problem.

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