8. [3/6 Points] DETAILS PREVIOUS ANSWERS Consider the following functions. f( x) = x2, g(x) = vx-7 Find (f o g)(x). x - 7 Find the domain of (f o g)(x). (Enter your answer using interval notation.) (-00, 00) X Find (g o f) (x). Vx2 - 7 Find the domain of (go f)(x). (Enter your answer using interval notation.) ( -00, - V7 ] U [ V7, 0. ), [ x/ [x5-V7 x> V7]1] Find (fo f) (x). 7 4 Find the domain of (fo f)(x). (Enter your answer using interval notation.) (-00,00) Find (g o g)(x). (Vx-7-7) X Find the domain of (g o g)(x). (Enter your answer using interval notation.) [56,00 ), {x x2 561} X1. [-/4 Points] DETAILS Describe the end behavior of each polynomial. (a) y = x3 - 3x2 + 5x - 13 End behavior: y - as X -> 00 y as X -> -00 (b) y = -5x4 + 12x + 100 End behavior: y - as X -> 00 y - as X -> -00