Algebra-2

Question Analysis
This question tests the student's ability to evaluate a linear function in a real-world context. The function represents the total cost for buying a certain number of cupcakes, including a fixed delivery fee. The student needs to substitute the given number of cupcakes into the function and calculate the total cost.

Key Concept Explanation
Evaluating a function using function notation involves substituting the given input value into the function expression and calculating the corresponding output value. For a function , represents the result obtained by substituting into the function.

Step-by-step Solution
1. Start with the given function: .
2. Substitute