Answer: The correct option is, It is a line joining the points whose x and y coordinates add up to 4.
Step-by-step explanation:
The given equation is, 
when we take x = 1 then


when we take x = 2 then


From this we conclude that the sum of 'x' and 'y' coordinates is always equal to 4.
Hence, the correct answer is, It is a line joining the points whose x and y coordinates add up to 4.
The solution to any system graphically can be found where the 2 graphs intersect. These two graphs intersect at the point (0, 2).
Answer:
C on edge 2021
Step-by-step explanation: