Question #a5656 Precalculus Functions Defined and Notation Domain 1 Answer VinÃcius Ferraz Feb 6, 2017 CC - {1} Explanation: You want the domain of f^-1(x) = y, x = frac{y - 5}{y + 5} xy + 5x = y - 5 xy - y = -5x - 5 y = frac{-5x - 5}{x - 1} = -5 frac{x + 1}{x - 1} We may divide by x - 1 if and only if x ne 1. Answer link Related questions What is the domain of a function? What are common mistakes students make when working with domain? How does the domain of a function relate to its x-values? What is the domain of a linear function? What is the domain of a quadratic function? What is the domain of a function like f(x) = 5x^2? What is the domain of f(x) = {(1, 2), (3, 4), (5, 6), (7, 8), (9, 10), (10, 10)}? What is the domain of f(x) = x? How do I find the domain of the function f(x) = 2x? How do I find the domain of the function f(x)=5x^2+2x-1? See all questions in Domain Impact of this question 1853 views around the world You can reuse this answer Creative Commons License