find the absolute value -15
recall the definition of |x|:
|x| = x if x >= 0
|x| = -x if x < 0
so, since -15 < 0, |-15| = -(-15) = ?
The distance of a number from the origin of a number line is called the absolute value of the number. The absolute value of +20 is the same as the absolute value of -20, because they are the same distance from the origin:
|20| = 20, and |-20| = 20.
To find the absolute value of -15, you simply need to take the number without considering its negative sign. The absolute value of a number represents its distance from zero on the number line. Since -15 is 15 units away from zero in the negative direction, its absolute value is 15.
Mathematically, you can express the absolute value of a number using the notation |x|. Therefore, the absolute value of -15 can be written as |-15|, which equals 15.