Final answer:
The slope of the function f(x) = 0.096 + 19.50 is zero because the line is horizontal, representing no rise over the run.
Step-by-step explanation:
The question asks about the slope of the function f(x) = 0.096 + 19.50. This function is a linear equation in the form of y = mx + b, where m represents the slope and b represents the y-intercept. In the given function, there is no variable x accompanying a coefficient, indicating that the function represents a horizontal line.
The slope is calculated as the rise over the run between any two points on a line. Since there is no change in the y-value no matter how much the x-value changes, the slope is zero. Therefore, the correct answer to the question is (C) 0, because a horizontal line does not rise or fall as it moves left to right on a graph.