when elijah left his house in the morning his cell phone battery was partially charged. the charge remaining in elijahs battery, as a percentage, can be modeled by the equation B=27-4.5t. where t is the number of hours since elijah left his house. what is the slope of the equation and what is its interpretation in the context of the problem

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m