Answer: In function notation, we use f(x) to represent the output (the result) of the function when the input is x. So, the description "Add 50 and then multiply by 5" is expressed as f(x) = (x + 50) * 5 in function notation.
Explanation:
The rule that explicitly defines f(x) using the given description is as follows:
f(x) = (x + 50) * 5
In function notation, we use f(x) to represent the output (the result) of the function when the input is x. So, the description "Add 50 and then multiply by 5" is expressed as f(x) = (x + 50) * 5 in function notation.