Answer:Input : A = 12, B = 8
Output : X = 2, Y = 10
Input : A = 12, B = 9
Output : -1
Step-by-step explanation:
h(t) is the height of the diver in feet above the water
Now it asks about the time at which diver reaches the water
When diver reaches the water , the height of diver from water should be zero
So we plug h(t) =0
So

divide whole equation by -16

we can now factor the quadratic equation
So we get
(t+4)(t-3) =0
plug each factor equal to zero and solve for t
t+4 =0 and t-3 =0
So t=-4 and t=3
Now time cannot be negative , So t=3
So time = 3 seconds
It takes 3 seconds for the diver to reach the water
Here it is...........................
(y-14)=8/2
y-14=4
y=4+14
y=18