The range is the set of all possible y-values that could come from the equation y = |x|.
Since the absolute value only results in 0 or positive numbers, the range cannot include any negative real numbers.
|3| = 3
|0| = 0
|-3| = 3
Therefore the range is not all real numbers, since all negative real numbers are excluded from the range.
The range is y ≥ 0.