Point slope form is y - y1 = m(x-x1)
The time of takeoff of this hovercraft would be 0 seconds, as if you were starting a timer. So, if you plug in 0 for x (unit for seconds) in your equation, it will look like this:
h(0) = -3(0 - 3)² + 108
Parenthesis first
h(0) = -3(-3)² + 108
Exponents next
h(0) = -3(9) + 108
Multiplication
h(0) = -27 + 108
Combine like terms
h(0) = 81: The height of the hovercraft at the time of takeoff is 81 meters!
Hope this helps :)
Answer:
$559.77
Step-by-step explanation:
Total cost = 
We need to find 4.5% of 525.61. This will be state tax.
We need to find 2% of 525.61. This will be city tax.
Converting 4.5% to decimal (4.5 divided by 100) and then multiplying with 525.61 will give us the answer.
State tax = 
City tax = 
Grand total purchase price is 525.61 + 23.65 + 10.51 = $559.77
7ft 1inches is the correct answer