Answer
910 feet
Work Step by Step
We are given that the height of the football above the Colorado River at any time t can be described by the polynomial function $P(t)=-16t^{2}+10t+910$.
In order to find the height at $t=0$ seconds, we can calculate the value of $P(0)$.
$P(0)=-16(0)^{2}+10(0)+910=0+0+910$ feet
