What does this value represent.

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?