Answer:
A. Right a multiple of 2 and up a multiple of 1.
B. (2, 1)
C. the same
Step-by-step explanation:
A. The original point was (2, 1), so if Larissa moves right a multiple of 2 and up a multiple of 1, she'll stay within the ratio.
B. We already know this is proportional, since it goes through the origin; the line just has to pass through the right point: (2,1)
C. The line will be proportional, so as long x is twice as much as y, Larissa will have the same shade of green paint every time.
