University of Central Florida (UCF) EGN3211 Engineering Analysis and Computation Final Practice Exam

To determine the output of x after calling the add function in the given code, it's important to understand what the add function does and how it interacts with the variable y.

If the add function is designed to perform an addition operation involving x and y—typically defined as something like `x = x + y` or `return x + y`—the behavior of y in relation to x is key. Assuming the function adds a specific value to x or is defined to only utilize the value of x directly without any dependencies on y's value, it could lead to the scenario where x retains its original value or is assigned a new calculated value based purely on other logic within the function.

If, for example, y is initialized but not used inside the function, the output of x would still depend on the initial definition of x and the operations carried out within add. If y's role is indeed irrelevant and not called upon in the computation, and if no change to x was executed in the function, the output will simply be the initial or preset value of x, which could very well be 5.

This logic allows us to conclude that x being equal to 5 is plausible here, as long as the add function does not modify it based