Final answer:
The given information that f(x) is a linear function does not provide enough details to determine the value of n. In the context of linear equations, n often refers to the number of data points, but this cannot be ascertained without additional information.
Step-by-step explanation:
When determining the value of n given that f(x) is a linear function, we do not have sufficient information provided purely with the statement that f(x) is linear. In mathematics, particularly within the context of linear equations, the term n often signifies the number of data points or sometimes the degree of a polynomial; however, no specific values or relationships have been defined in this question to decide the value of n.
In regards to linear functions, such as those represented in the equations A. y = -3x, B. y = 0.2 + 0.74x, and C. y = -9.4 - 2x, these are all linear equations and can be identified by their standard form y = mx + b. Here, m represents the slope, and b represents the y-intercept. None of these directly determine the value of n.