To find the maximum height, we must find the x value at which the maximum height occurs.
The maximum height occurs at x = 0 because that is where y is the largest.
When we plug x= 0 into the function that is given in the question, we get 630 ft.
Hope it helps!
The answer is 60 because you have to divide 7 1/2 by 1/8
i pretty sure it is 20 feet
God Bless
I can't answer your question without a picture... Sorry.