What is the value of y in the inverse variation table where (1, y), (2, 11), and (4, 1)?

The problem states that the relationship is an inverse variation. For an inverse variation between two quantities, say $N$ (Number of items) and $C$ (Cost), their product is a constant, $k$.
So, $N \cdot C = k$.

From the table, we have three pairs of $(N, C)$ values:

1. $(1, y)$
2. $(2, 11)$
3. $(4, 1)$

Step 1: Check for consistency in the given data.
Using the second pair $(2, 11)$:

$$k = 2 \times 11 = 22$$

Using the third pair $(4, 1)$:

$$$$