What is 18 -9 i lined it up and carried the one but it just brought me back to 18-9 ,

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

first one because it can't have a fraction in it

step-by-step explanation: