Mathematics
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OpenStudy (anonymous):
can someone answer this??? :(
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OpenStudy (anonymous):
OpenStudy (amistre64):
when does a fraction = zero?
OpenStudy (anonymous):
never
OpenStudy (anonymous):
?
OpenStudy (amistre64):
.... try again
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OpenStudy (amistre64):
if you have 0 out of 5 pieces, wouldnt that be 0/5 = 0?
OpenStudy (anonymous):
hmm im really bad at functions and graphs :'(
OpenStudy (anonymous):
yes^
OpenStudy (amistre64):
if you have 0 out of x pieces, then youd have zero still; 0/x = 0 right?
OpenStudy (anonymous):
yes
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OpenStudy (amistre64):
can 1/x = 0/x ?
OpenStudy (anonymous):
no
OpenStudy (amistre64):
then the range of this function is not ALL real numbers is it? since its never equal to zero
OpenStudy (amistre64):
can we divide by a zero?
OpenStudy (anonymous):
u can but it will always be 0
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OpenStudy (amistre64):
it will?
5/0 means that 0*n = 5 , what is the value of n?
OpenStudy (anonymous):
bothing times 0 equals 5?
OpenStudy (amistre64):
correct, so dividing by zero is UNDEFINED, not zero
OpenStudy (amistre64):
so the domain of our function doesnt include zero
OpenStudy (amistre64):
and the other key point is knowing something about direct and inverse variations; this ones inverse since x is on the bottom
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OpenStudy (anonymous):
so then its only D?
OpenStudy (amistre64):
I covered all the needed information with you ...
D is one of the right options, ther eis one more
OpenStudy (anonymous):
a and D?
OpenStudy (amistre64):
that would be best
OpenStudy (anonymous):
THANKS @amistre64
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OpenStudy (anonymous):
:) REALLY APPRECIATEDD
OpenStudy (amistre64):
good luck ;)