If Joe wanted to create a function that modeled an exponential function with base of 8 and what exponents were needed to reach specific values, how would he set up his function?
f(x) = x8
f(x) = log8x
f(x) = logx8
f(x) = 8x
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OpenStudy (itsmichelle29):
i medal and fan
OpenStudy (anonymous):
f(x) = 8x X can be his unknown and 8 is his base for an exponential function!
^.^
OpenStudy (itsmichelle29):
thanks
OpenStudy (anonymous):
Np!
OpenStudy (alekos):
f(x)=8x is just a straight line, not an exponential function
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OpenStudy (itsmichelle29):
so it would be B right
OpenStudy (itsmichelle29):
no wait its D
OpenStudy (alekos):
That is exactly right. B is a logarithmic function with a base of 8. The inverse of this is an exponential function
OpenStudy (itsmichelle29):
modeled an exponential function
OpenStudy (itsmichelle29):
there asking for Exonential
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OpenStudy (alekos):
I think the problem here is that you haven't written your functions out correctly.
Is this D?
\[y=8^{x}\]
OpenStudy (itsmichelle29):
f(x) = 8x
OpenStudy (alekos):
If it's suppose to look like this then it's correct
\[f(x) = 8^{x}\]