Answer: The initial height of the ball is 12 feet.
Step-by-step explanation:
We have the function 
, which models the height (in feet) of the ball after 
seconds.
Then, as the height is in function of the time, we know that the ball is in the initial height when:
So, to find the initial height, you need to substitute into the function:
Therefore, the initial height of the ball is 12 feet.
I don’t know it the last number is 8500 but I got 8404 it’s that
Answer: 150
Step-by-step explanation:
30% = 0.3
100-30=70
70% = 0.7
0.7 X 500 = 350
500-350 = 150
Y = 3x - 4.....x int can be found by subbing in 0 for y and solving for x
0 = 3x - 4
-3x = -4
x = -4/-3
x = 4/3...so the x int = (4/3,0)
y - 2/3x = 0....in y = mx + b form, the m represents the slope. So ur slope is -2/3
