Practice problem
What can be said about the derivative of f(x)=(12)xf(x)=(\frac{1}{2})^xf(x)=(21)x
The derivative is positive for all values of x.
The derivative is negative for all values of x.
The derivative is always 1.
The derivative is negative for x>0 and positive for x<0.
Type a concept, like “slope” or “photosynthesis”.