Answer:

The above function value for
shows that height of the ball before it was dropped i.e. at time = 0 seconds.
The height of the ball above the ground before it was dropped = 400 ft.
Step-by-step explanation:
Given:
The quadratic function that models the height of the baseball above the ground in feet ,
seconds after it was dropped is given as:

To find
and interpret the meaning of the function value in contect of the problem.
Solution:
In order to find
, we will replace
in the given function as
is a function of time
.
Thus, we have:



(Answer)
The above function value for
shows that height of the ball before it was dropped i.e. at time = 0 seconds.
The height of the ball above the ground before it was dropped = 400 ft.
$14.8 was the markup, And the price went up in 22%, how I got my answer!
I first found that adding $64+$14.8=$78.8, and for percentage, that took awhile. At first I thought that it would be 20% but upon further investigation I found that, 22% Of $64 is $14.8.
I hope this helps!
P.S. 20% of $64 is $12.8.
Answer:
no
Step-by-step explanation:
3x=-12
/3 /3
x=-4
:)