Practice problem
Find the range of f(x)=∣x∣−1∣x∣f(x) = \frac{|x|-1}{|x|}f(x)=∣x∣∣x∣−1.
(−∞,∞)(-\infty, \infty)(−∞,∞)
(0,1)(0,1)(0,1)
(−∞,1)(-\infty,1)(−∞,1)
(1,∞)(1,\infty)(1,∞)
Type a concept, like “slope” or “photosynthesis”.