Answer:A number decreased by 40
Step-by-step explanation: I really don't feel like explaining this lol...
Answer: Choice A) {-4, -1, 3, 5, 6}
The domain of a relation is the set of possible x inputs. All we do is list the x coordinates of the given points. The order doesn't matter but your book has decided to list the x values from smallest to largest.
Side note: the list of possible output y values is known as the range.
