wikiHow Domain and Range Practice Problems 1. Find the domain and range of the function f(x) = 2x + 1. 2. Find the domain and range of the function f(x) = √(4 - x). 3. Find the domain and range of the function f(x) = (x - 1)/(x^2 - 4x + 3). 4. Find the domain and range of the function f(x) = 3x^2 - 2x + 1. 5. Find the domain and range of the function f(x) = 1/(x - 2). 6. Find the domain and range of the function f(x) = x^3 + 5x^2 - 3x. 7. Find the domain and range of the function f(x) = |x|. 8. Find the domain and range of the function f(x) = e^x. 9. Find the domain and range of the function f(x) = sin(x). 10. Find the domain and range of the function f(x) = ln(x). 11. Find the domain and range of the function f(x) = 1/x. 12. Find the domain and range of the function f(x) = (x + 2)/(x^2 - 4). 13. Find the domain and range of the function f(x) = 1/x^2. 14. Find the domain and range of the function f(x) = cos(x). 15. Find the domain and range of the function f(x) = 2/(x - 1) - 3. 16. Find the domain and range of the function f(x) = (x^2 - 1)/(x - 1). 17. Find the domain and range of the function f(x) = tan(x). 18. Find the domain and range of the function f(x) = x/(x^2 - 1). 19. Find the domain and range of the function f(x) = 2cos(x) - 1. 20. Find the domain and range of the function f(x) = (x - 2)/(x + 1). Page