Answer:
a) 1835 feet.
b) 1323 feet.
Explanation:
Substitute each value of t into the equation to find the height at that particular time.
When t = 2, P(t) = -16(2)^2 + 1899 ⇒ P(t) = -64 + 1899 ⇒ P(t) = 1835.
When t = 6, P(t) = -16(6)^2 + 1899 ⇒ P(t) = -576 + 1899 ⇒ P(t) = 1323.