Question

The quadratic model f(x)=-5x^2 +200 represents the approximate height, in meters, of a ball x seconds

Answer 1

x = 5.477 s

Explanation:

Your full question can be found in the image below

We can easily solve this question by using a graphing tool or calculator to plot the equation

f(x)=-5x^2 +200

See second attached picture

The ball is 50 meters from the ground when

50 =-5x^2 +200

-150 =-5x^2

x^2 = 30

x = 5.477 s