3) Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.)q(x) =1x2 − 9(a) q(0)(b) q(3)(c) q(y + 3)4) Find the function value, if possible. (If an answer is undefined, enter UNDEFINED.)f(x) =2x + 1, x < 02x + 8, x ≥ 0(a) f(−1)(b) f(0)(c) f(2)