A submarine was in a resting position 400 m below sea level. It rose 225 m. Determine its new depth?

175 meters, since its below sea level it would be- -400m - (-225m), subtracting with negative # and negative # is the equivalent of getting closer to zero, just figure out 400 - 225, and put a - symbol at the beginning of the number

a is the correct

i believe that the answer is

b. y-1=-2(x-4)

hope this !