Final answer:
To reflect a function over the y-axis, change the sign of the x-coordinates. The options a) and d) represent the reflected function.
Step-by-step explanation:
To reflect a function over the y-axis, we change the sign of the x-coordinates. In this case, the function f(x) = 5(3) becomes f(x) = -5(3).
So option a) ( f(x) = -5(3) ) represents the reflected function.
Another option that represents the reflected function is d) ( f(x) = 5(3) ).
This is because the original function is symmetric about the y-axis and reflecting it over the y-axis does not change the function.