0. Functions

Which operation can be used to eliminate the natural logarithm ($\ln$) from both sides of an equation such as $\ln \left(x\right)=3$?

Given the following table of values for an exponential function $f\left(x\right)$:

Which of the following transformations results in a vertical stretch of the exponential decay function $f\left(x\right)=e^{-x}$?