Can anyone help me out with this Algebra 2 question?

The right answer is C

and this how it looks like on the graph

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

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