Question

can someone plz help me this is my last day of school and i need help will medal

Answer 1

A toy rocket was launched from the ground. The function f(x) = -16x2 + 192x shows the height of the rocket f(x), in feet, from the ground at time x seconds.
What is the axis of symmetry of the graph of f(x), and what does it represent?


x = 12; it takes 12 seconds to reach the maximum height and 12 seconds to fall back to the ground
x = 12; it takes 12 seconds to reach the maximum height and 24 seconds to fall back to the ground
x = 6; it takes 6 seconds to reach the maximum height and 6 seconds to fall back to the ground
x = 6; it takes 6 seconds to reach the maximum height and 3 seconds to fall back to the ground

Answer 2

find the two x values where f(x) = 0. the first x value is 0 because we are launching from the ground, you can find the other x value by substituting 0 for f(x)

the axis of symmetry is at the x value between those two x values

the maximum height is the value of f(x) at the axis of symmetry

Answer 3

umm sry you lost me

Answer 4

@Vocaloid

Answer 5

@hartnn @dan815 @nincompoop @triciaal

Answer 6

@Preetha

Answer 7

substitute 0 for f(x) and solve for x first

Answer 8

0 = -16x2 + 192x , find x

Answer 9

would it be -4=x @Vocaloid

Answer 10

???

Answer 11

sorry, hold on a sec