Question

What is the domain of the function shown in the table?

Answer 1

The point is given as (x,y). 
where x is the value of x-coordinate and y is the y-coordinate. 

So, from the table we have points that make up the domain. 
These are;

(-2,0), (-1,1), (0,2) and (1,3)

Answer 2

The Domain of a function is described as the set of all the x values that a function can take.These are the allowable values of a function.

From the table we can see that the first column shows the x values for the function. So the set of all  values will be the Domain of the function.

Hence the Domain is {-2, -1, 0, 1}

So, option B gives the correct answer