Final answer:
K(t) is a constant function with a value of -4, so K(6) is also -4, as the function's value is the same for any input of t.
Step-by-step explanation:
The question presents a mathematical function K(t) with a constant value of -4 regardless of the variable t. Therefore, when asked for K(6), the function's value is not dependent on the input, and K(6) equals -4 as given by the function's definition. There's no need for further computation or substitution because the function's value is constant and does not change with different values of t.