Example 2

Three students are shooting wads of paper with a rubber band, aiming for a trash can in the front of the room. The height of each student’s paper wad in feet is given as a function of the time in seconds. Which student’s paper wad flies the highest? • The path of Alejandro’s paper wad is modeled by the equation [math]f(x) = –x^2 + 2x + 7[/math]. • Melissa’s paper wad is estimated to reach the heights shown in the table below. [math]\ \ \ \ \ x \ \ \ 0 \ \ \ 2 \ \ \ 3 \ \ \ 4[/math] [math]\ \ \ \ \ y \ \ \ 3 \ \ \ 6 \ \ \ 7 \ \ \ 6[/math] • After [math]3[/math] seconds, Connor’s paper wad achieves a maximum height of [math]6.5[/math] feet above the floor.

 

Walch Education

 
Tip material
Foaie de lucru
Etichete
algebraic  equation  extremum  function  height  maximum  parabola  quadratic  seconds  table  time vertex Arată mai multe…
Grup Ţintă (Vârstă)
14 – 18
Limbă
English
 
 
 
© 2026 International GeoGebra Institute