cements Ex: The Domain of Rational Functionsal Functions Determine the domain of the following rational functions. Watch Share nents f(x)= 2x - 5 9 ( x 2x2 + 3x 2 2 -4x h(xx) = T x2 + 4x - 21 2 x - 5 - 0 x + 4 x - 21 =0 ( X + 7 x x - 3 ) = 0 X = - 7 or *= 3 X = 2 Domains All IR except Domain : All IR except * = - 7, 3 Domin ! All Rails les except * = le Drive (-0, # )0 ( 3 0 ) V(0,0 ) Watch on Youtube) U (0 ) Division by Zero is Undefined : 365 1 Find the domain of the function in interval notation: f(a) = ac + 21 Question Help: Message instructor Submit Question here to search O Ai F9 F10 F11 F2 F3 F4 F5 F6 F7 F8 F1 O- # % A & a 18 O 6 N O Q W m R