3) The population of Chugwater, W}? has been found to be able to be approximated by the function PH) 2 159 + 28.9"\"'02t for t :3 G where r is in years and r: U corresponds to the year 197T}. When (in what year) will the population be 1,500? x2+5 3x+19 5) Find the instantaneous rate of change of f (x) = at x = -5. 3x2+ 11x 18 6) Determine Where the following function is continuous: f0!) = x2 _ 2m: + 96 7') Find the average rate ofchange of g{x) : 3x5 19x3 4x2 from x = 2 to x = 3