Question

14. What is the range of the function f(x) = |x - 1 |÷ (x-1) ? (x - 1) A. R - {1,-1} B. R C. R-{1} D. {-1, 1)​

Answer 1

Answer:

For every positive value of x(except 1), f(x)=1. For every negative value of x, f(x)=-1. Range of f(x) is={-1,1}.