Question
The range of the function f(x) = |x - 1| is:
  1. $\big(-\infty,0\big)$
  2. $\big[0,\infty\big)$
  3. $\big(0,\infty\big)$
  4. $\text{R}$

Answer

  1. $\big[0,\infty\big)$

Solution:

$\text{f(x)}=|\text{x}-1|\geq0\ \forall\text{ x}\in\text{R}$

Thus, range $=\big[0,\infty\big)$

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