Practice problem
Is f(x)=3−xf(x)=3^{-x}f(x)=3−x an exponential function?
No, 333 can't be used as a base for exponential functions.
No, the exponent −x-x−x has a negative coefficient of −1-1−1.
Yes, this is an exponential function!
Type a concept, like “slope” or “photosynthesis”.
