Answer:
y = 2x
Step-by-step explanation:
since x and y vary directly then the equation is
y = kx ← k is the constant of variation
to find k use the given condition y = 18 when x = 9
k =
=
= 2, hence
y = 2x ← is the equation relating x and y
Since t is the time after it dropped and h0 is the initial height, just substitute the things already given to you in the question
h = 1,200 - 16(2)²
h = 1,136
Therefore, the height of it then would be 1,136 feet above the ground
x^2-16x+64
(x-8)(x-8)
x(x)*(x)(-8)*(-8)(x)(-8)(-8)
x^2-8x-8x+64
x^2-16x+64
Answer: (x-8)^2 or (x-8)(x-8)