a rocket was launched into the air from a platform above the ground. the height, in feet, of the rocket…

a rocket was launched into the air from a platform above the ground. the height, in feet, of the rocket above the ground t seconds after being thrown can be determined by the expression -16t² + 64t + 80. what does the 80 in the expression represent?\n\nthe rocket lands on the ground after 80 seconds.\n\nthe maximum height of the rocket is 80 feet.\n\nthe rocket was launched from a platform 80 feet above the ground.\n\nthe rocket reaches a maximum height of 80 feet.

a rocket was launched into the air from a platform above the ground. the height, in feet, of the rocket above the ground t seconds after being thrown can be determined by the expression -16t² + 64t + 80. what does the 80 in the expression represent?\n\nthe rocket lands on the ground after 80 seconds.\n\nthe maximum height of the rocket is 80 feet.\n\nthe rocket was launched from a platform 80 feet above the ground.\n\nthe rocket reaches a maximum height of 80 feet.

Answer

Brief Explanations:

The height - time function of the rocket is a quadratic function $h(t)=-16t^{2}+64t + 80$. When $t = 0$ (at the moment of launch), $h(0)=80$. This means the initial height of the rocket, which is the height of the platform from which it is launched.

Answer:

The rocket was launched from a platform 80 feet above the ground.