Question

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

@Elsa213 @Conqueror @iGreen

Answer 3

i'm not sure what it is

Answer 4

Axis of symmetry is the x-value of the vertex of the parabola..get it?

Answer 5

Graph of \(f(x) = -16x^2 + 192x\):

https://www.desmos.com/calculator/iozhowc8ov

Answer 6

wut answer do u tink is correct?

Answer 7

What's the vertex there? @SouthernRebel101

Answer 8

576?

Answer 9

No, that's the y-value, what's the other number?

Answer 10

x=4takes 4 seconds to reach maximum height,4 seconds to fall back to the ground. ;p

Answer 11

i green when you get finished help me please

Answer 12

@Elsa213 You're not supposed to give answers..and that's not even a choice.

Answer 13

;-;

Answer 14

xD lol its for a different version of this question

Answer 15

so @iGreen you saying like where the x crosses the x axis?

Answer 16

Well, what's the other number besides 576? @SouthernRebel101

Answer 17

k den ;-;
dun tag meh.... im horrible @ dis garbage

Answer 18

Lol

Answer 19

??? lol 0 and 12?

Answer 20

@iGreen

Answer 21

The Parabola STARTS at 0..then it goes to 12..that means it took 12 seconds to hit the ground.

Answer 22

But the vertex of the graph is (6, 576)

Which means the axis of symmetry is gonna be x = 6.

So it took 6 seconds to reach to the vertex, and 6 seconds to fall back down.

So what's your answer gonna be? @SouthernRebel101

Answer 23

SO, its A? :D

Answer 24

wait! wha? its 12 seconds to fall

Answer 25

how come 6 then?

Answer 26

@iGreen

Answer 27

12 seconds total to fall..

6 to go to its highest peak(which is half the distance)

6 to fall back down(which is the other half)

Answer 28

The answer isn't A..

Answer 29

I told you the axis of symmetry would be x = 6..that eliminates A and B.

Answer 30

@SouthernRebel101 r u guessing?

Answer 31

C then?
and no im not guessing

Answer 32

i am really trying to get this

Answer 33

Yep, C is it.

Answer 34

THANK YOU SO MUCH!

Answer 35

Np.