Answer:
k(x) = 1.20^x
Step-by-step explanation:
Here, we want to get a function
The output in this case refers to k(x)
the input refers to the value x
So, for every 1 increase in x, we want k(x) to increase by 20%
20% is same as 20/100 = 0.2
So at an initial value of 1, each increase if 20% will be 0.2 + 1 = 1.2
So therefore, we have the function as;
k(x) = 1.20^x
