James bill at a restaurant
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Using an exponential function, it is found that f(5.5) = 19.8.
<h3>What is an exponential function?</h3>An exponential function is a function in which the growth rate is a percentage, modeled by:
In which:
- a is the initial value.
- b is the rate of change.
f(3.5) = 25 means that:
f(8.5) = 14 means that:
Hence:
Hence, the function is given by:
Then, when x = 5.5:
More can be learned about exponential functions at brainly.com/question/25537936