Finding output of one step function that models a real world situation: Function notation

Question

Deandre earns 41 dollars per week working part-time at a book store. 

He makes one dollar more for every book he sells.

The amount, A (in dollars), that Deandre earns in a week If he sells “b” books is given by the following function:

A(b) = 41 +b

How much does Deandre earn in a week if he sells 26 books?

Answer 1

you want to plug in b = 26 into the given equation and then simplify in order to find the amount!

A(26) = 41 + 26 = 67

meaning that he earns $67 in a week in this scenario

Answer 2

A(6) = 41 + 6