Find the missing values and describe the rule in words for table in 4.1

Here are the missing values and the rule for the table:

First, we need to determine the rule that relates $x$ and $Y$. Let's examine the given $(x, Y)$ pairs from the table:
$(-2, -5)$
$(-1, -2)$
$(0, 1)$
$(1, 4)$
$(2, 7)$

Let's find the difference in $Y$ for a unit increase in $x$:
For $x = -2$ to $x = -1$: $Y$ changes from $-5$ to $-2$. Difference: $-2 - (-5) = 3$.
For $x = -1$ to $x = 0$: $Y$ changes from $-