The height, h(t) , in feet of a football thrown from a skyscraper after t seconds is given by h () = - 16t-+73.31+325 . Find the velocity of the football after 7 seconds. O -54.1 feet per second O 541 feet per second O -150.7 feet per second O 150.7 feet per second\fFind the linear approximation of f(x) =Vx when x = - 8 . O L(X) = -2+ 12 (x - 8) O L(X ) = 2-1 12 (x +8) O L(x) = - 2+ 12 (x +8) O L(X) = - 2- 12 (x -8)