1. [-/3 Points] DETAILS WANEFMAC7 1.1.010. 0/2 Submissions Used MY NOTES ASK Say whether or not f(x) is defined for the given values of x. If it is defined, give its value. (If an answer is undefined, enter UNDEFINED.) Rx ) = 2 - x2, with domain [2, +0) (a) x = 5 R(5) = (b) x = 0 A(0) = (c) x = 1