Algebra-2

Question Analysis
The question tests the student's ability to create a function that models a real-world scenario. The function described is one that calculates the total cost of buying pencils, with each pencil costing 0.65 dollars and a fixed shipping fee of 5 dollars.

Key Concept Explanation
Function notation, such as , is used to represent a function where is the name of the function and is the input variable. The expression represents the output value of the function for a given input .

Step-by-step Solution
1. Identify the cost per pencil: 0.65 dollars.
2. Identify the fixed shipping fee: 5 dollars.
3. Write the function that calculates the total cost: