A toy rocket was launched from the ground. The function f(x) = -16x² + 160x shows the height of the rocket f(x), in feet, from t
he ground at time x seconds. What is the axis of symmetry of the graph of f(x), and what does it represent?
--
A) x = 10; it takes 10 seconds to reach the maximum height and 10 seconds to fall back to the ground
B) x = 10; it takes 10 seconds to reach the maximum height and 20 seconds to fall back to the ground
C) x = 5; it takes 5 seconds to reach the maximum height and 10 seconds to fall back to the ground
D) x = 5; it takes 5 seconds to reach the maximum height and 5 seconds to fall back to the ground
--
I was absent for a week and we only touched up on this one day when I got back.
I really appreciate any and all help given.
Ranking Brianliest to the one who can give step by step instruction included in their answer.
The answer is D. All you have to do is graph the equation, and you will have the vertex and the roots. By the way, you can rule out B and C because those two do not follow the rules of a quadratic. Also, A and B have the wrong axis of symmetry, because the rocket lands after 10 seconds.
