what does "Determine whether y is a function of x" mean?
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OpenStudy (anonymous):
the problem is 6x-y=24
OpenStudy (anonymous):
@terenzreignz
terenzreignz (terenzreignz):
This had better not be a quiz :/
terenzreignz (terenzreignz):
Well then, a way to do this is see if you can rearrange and manipulate the equation so that y stands alone on one side of the =sign and on the other side, an expression that only involves x (no y). No matter how complicated the expression, as long as y is alone on one side.
OpenStudy (anonymous):
ok let me give it a shot, one sec
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OpenStudy (anonymous):
-y=-6x+24
y=6x-24
OpenStudy (anonymous):
6x-y=24 tr solving for x by isolating it move y not x
terenzreignz (terenzreignz):
Good job. Now if that can be done (namely, isolating y on one side and only having an expression of x on the other) then the equation is a function
OpenStudy (anonymous):
ok so 6x=24+y
x=4+y/4
terenzreignz (terenzreignz):
specifically, y is a function of x.
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OpenStudy (anonymous):
x=4+y/6 is what I meant
OpenStudy (anonymous):
ty!!!!!!!!!!!!!!!!!!!!!!!!
terenzreignz (terenzreignz):
This is another thing.
Since it is x that you isolated on one side and had an expression using only y on the other, you may now also conclude that x is a function of y.