Answer:
The given function is
[tex]y=5^{x}[/tex]
Notice that this is an exponential function with a positive base, which means is a growth function.
From the equation we know that [tex]a=5[/tex] and [tex]b=1[/tex], which are the base (rate) and exponent, respectively.
For 1 hours, we have
[tex]y=5^{1}[/tex]
Therefore, the first hour there are 5 cells.
