Find domain pls 9. The domain of f(x) = 1 - 2 x + x is (1) R (2) [0, ∞) (3) [−1, ∞) (4) (−∞, 0] Share with your friends Share 0 Prashant Kumar Chaudhary answered this Dear Student, The solution of your question is given below: Regards, 0 View Full Answer