Question

a projectiles motion is modeled by the function given in the table, where x represents time in seconds and f(x) represents height above the ground. at what time is the projectile on the ground? - 80.4 seconds 2 seconds 4.6 seconds it will never hit the ground.

Explanation:

Step1: Identify ground - height condition

The projectile is on the ground when $f(x)=0$.

Step2: Check table values

Looking at the table, when $x = 2$, $f(x)=0$.

Answer:

2 seconds