Which of the following are situations that can be modeled with a quadratic function? Select all that apply.
1)A tree decays 10% every six weeks
2)The height of a ball rolling down a hill
3)A gym charges $15 per fitness class
4)An antibiotic eliminates 50% of bacteria every 24 hours
5)The height of a rocket after it is launched

Respuesta :

4 antibiotic eliminates because it’s something that helps and it a quadratic function
5) The height of a rocket after it is launched
 For this case, what you should do is remember the kinematics expressions where we have:
 a
 v = a * t + vo
 y = a * t ^ 2 + vo * t + i
 Where,
 a: acceleration
 v: speed
 y: vertical position
 t: time
 vo: initial speed
 yo: initial position
 We observe that the expression for the given position is given by a quadratic expression.