Answer: The answer is (c) 0.5.
Step-by-step explanation: We are given a table that shows the input and output values of a function f(x). We are to find the difference of outputs for any two inputs that are one value apart.
That is, we need to find f(n + 1) - f(n), for n > -4.
Let us take n = 0. So, n + 1 = 0.
From the table, we note that f(0) = 1 and f(1) = 1.5.
Therefore, we have

We can also check taking different values of 'n' that the difference will come out to be same, i.e., 0.5.
Thus, the answer is 0.5.