PLEASE HELP ME WITH D

Answer:
y = 2x + 0 or just y=2x they are the same
Step-by-step explanation:
from 200 to 50 is 150, and from 100 to 25 is 75, and 150/75 simplifies to 2/1, which is 2, therefore the slope is 2x
the x and y intercepts are both zero
can i get brainliest please?