explain the limitations on the base of an exponential function.
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OpenStudy (anonymous):
gotta be bigger than 0, can't be 1
OpenStudy (saifoo.khan):
And...?
OpenStudy (anonymous):
and what?
OpenStudy (saifoo.khan):
why the heck i can't hit good answer? >_<
OpenStudy (anonymous):
that is it. must be bigger than 0 (aka positive) and cannot be 1
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OpenStudy (anonymous):
you need reasons for these?
OpenStudy (saifoo.khan):
why that cannt be 1?
OpenStudy (anonymous):
because if the base is 1 it is not an exponential function, it is the constant function
\[f(x)=1^x=1\]
OpenStudy (saifoo.khan):
Q2:
explain how the graphs of exponential functions are different from the other functions you’ve studied (e.g., linear, quadratic, cubic, rational, etc.)
OpenStudy (anonymous):
there are many differences. exponential functions model things that grow or decay proportional to their current amount.
if the base is positive as x gets large f grows faster than any polynomial.
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