What is the domain of the given function? {(3, –2), (6, 1), (–1, 4), (5, 9), (–4, 0)}

{x | x = –4, –1, 3, 5, 6}
{y | y = –2, 0, 1, 4, 9}
{x | x = –4, –2, –1, 0, 1, 3, 4, 5, 6, 9}
{y | y = –4, –2, –1, 0, 1, 3, 4, 5, 6, 9}

Choice A is correct. This is because of the fact that the domain means the x-values of a function. The x-values given here are 3, 6, -1, 5, & -4. When you rearrange these in ascending order, you will get -4, -1, 3, 5, & 6. The meaning of the symbol "|" is "such that". When you put our domain in set notation, we will get {x | x = -4,-1,3,5,6}, which means "x such that x is equal to -4, -1, 3, 5, and 6". Hope this helped :)