Answer:
480 feet.
Step-by-step explanation:
We are told that the function [tex]h(t)=-16t^2+16t+480[/tex] models Jason's height above ocean measured in feet as a function of time and t is the time in seconds from jumping off.
To find the height of cliff we need to substitute t=0 in our given function as at t=0 we will get Jason's height above ocean which is same as the height of the cliff.
Upon substituting t=0 in our function we will get,
[tex]h(0)=-16(0)^2+16*0+480[/tex]
[tex]h(0)=-0+0+480[/tex]
[tex]h(0)=480[/tex]
Since, the function gives Jason's height above ocean in feet, therefore, the cliff was 480 feet high.