A) (0,1), (1,-2), (-1,4), (2,-5)
b) (0,4), (-1,2), (-2,0), (1,6)
c) (-2,-7), (-1, -7), (0,-7), (1, -7)
Just divide 4.5 by 2.8 and you'll get the rate of decreasing degree per hour.
Answer:
The answer is x=2i√5,−2i√5
The answer is B estimated number is 20