Answer:
![f(x) = 5 * 4^(x)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ad63gud455elicw1s6wstr7zyhdrzyzqfc.png)
Explanation:
There are four examples of the equation.
Now, the general form of an exponential function is
, where a > 0 and a ≠ 1.
Now, if the given functions passes through the point ( 2, 80 ), then
will be the required equation as it satisfies the point ( 2, 80 ).
( Answer )