Question Detail
Question
If y = ∫ f(x)dx + C, then f(x)dx is called the _______.
Correct Answer
Option D is the correct answer.
Detailed Explanation
In the expression ∫ f(x)dx, the function f(x) is called the integrand. The term dx indicates the variable of integration. While ∫ f(x)dx (the entire expression including the integral sign) represents the indefinite integral, the question specifically asks for what f(x) (or f(x)dx in this context) is called. The function being integrated, f(x), is the integrand. Option D aligns with this definition.
Hint
Consider the components of an integral. What is the name for the function inside the integral sign that is being integrated?