Question 1190515
.
Chris is a competitive swimmer. From experience, he knows that the function
g(t) will represent his height above the water when he dives off of the regular 4-foot-high diving platform, 
where t is the number of seconds after he jumps off of the platform. 
This function works when t≥0 (up until he hits the water).
This reminded Chris of another time when he was distracted, and jumped off the 30-foot super-high-dive 
platform two seconds before the starting signal.
Write an expression (using the function g) that will model Chris's height above the water, 
where t is the number of seconds after the starting signal.
~~~~~~~~~~~~~~~~~~



This part of your post 



                ". . . Cris jumped off the  30-foot super-high-dive platform two seconds before the starting signal' "



makes me laugh.    It reminded/recalled me one anecdotal story about the medicine tablets against headache.


The inscription on the bottle with the tablets contained this instruction:



                " Take one tablet  15  minutes before headache ".




//     Explanation :     It is a kind of humor . . .