Bianca is planning a hike. The beginning of the hike (point a) is at an altitude of 1500 feet. The end of the hike (point b) is three miles east, although along the way she will gain 1200 feet of altitude. She plans to use the linear interpolation formula to find the altitude at various positions along the hike. The coordinates for point a are ____ and the coordinates for point b are ____. Group of answer choices (0, 1500); (3, 2700) (0, 1500); (3, 1200) (3, 1500); (0, 1200) (3, 1500); (0, 2700) (0, 2700); (3, 1500)