|x|
The expression |x| represents the absolute value of a number x
The expression |x| represents the absolute value of a number x.
The absolute value of a number is its distance from zero on a number line. It represents the magnitude or size of a number, without considering its sign. Therefore, the result of |x| is always a non-negative value (either zero or a positive number).
To compute the absolute value of x, follow these steps:
1. If x is already non-negative (x ≥ 0), |x| = x. In other words, if x is positive or zero, the absolute value is equal to the number itself.
2. If x is negative (x < 0), |x| = -x. In other words, if x is negative, you take the negative value to make it positive.
For example:
1. If x = 5, |x| = 5 (since 5 is already non-negative).
2. If x = -8, |x| = -(-8) = 8 (since -8 is negative, we take the negative value to make it positive).
In summary, |x| takes a number x and returns its non-negative value.
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