Example ELF.NEL.2 :  Compare $ 2^x ?  e^x  ?  3^x$.
GeoGebra Comparison of $ 2^x , e^x  ,  3^x$.

Uncheck the upper box to hide the graph and arrows on the diagram for the function $h(x) = e^x$.
Check the lower box to show the graph and arrow on the diagram for the functions $f(x) = 2^x$ and $g(x) = 3^x$.

Use the $y_{zoom}$ slider to adjust the scale of the target axis on the mapping diagram.
Martin Flashman, July 11, 2014. Created with GeoGebra