Please help me I really need help with this

The answer might be c

Step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb