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# Determining when an Exponential Function is Positive

SVCALC-V5CXIE

Let $f(x)=e^x-1$. The function $f$ is positive on

A

$(0,\infty)$

B

$(-\infty,0)$

C

$(\infty,-\infty)$

D

$(-\infty, \infty)$