Using the profit function, it is found that:
a) She earns $36 after 25 years.
b) The function was shifted right 4 units and up 1 units.
<h3>What is the profit function?</h3>
The profit, in x years after 2015, is given by:
Item a:
She earns $36 after x years, considering x for which p(x) = 36, hence:
She earns $36 after 25 years.
Item b:
The new function is:
At the domain, we have that , that is,
, hence it was shifted right 4 units.
At the range, we have that , hence it was shifted up 1 unit.
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