1.7 Practice In Exercises 1-30, find the domain of each function. 1. f(x) = 3(x - 4) 2. f(x) = 2(x + 5) 3 3. g(x) = = 2 4. g(x) f(x) = Vx - 3 18. f(x) = Vx + 2 x +5 D. J(X) = X - 2X - 15 0. J( = X+x- 12 3 2 7. g(x) = x2 - 2x - 15 8. g(x) = x2 + x - 12