Using tables is a great way to understand the domain and range of a function. Here’s how I see it:

• Domain: This part is about the input values. When I make a table, I write down all the $x$ values (the inputs) I use. By looking at the table, I can easily find the smallest and largest $x$ values. This tells me the domain.

• Range: Now, I look at the output values (the $y$ values) from the function. The range is found by checking the outputs in my table. I identify the smallest and largest $y$ values to find the range.

So, making a table is like a simple map that helps me understand the function better!