400000 10 to the fifth power is 100000, so when you switch out the 1 for a 4, it become 400000.
Answer:
i believe the relative max coordinate is (2,4)
relative min is (-2,0) and (4,0)
and these are not absolute exterma maybe because there are more than one relative min?
82% of 503 is 412.46 hope this helps