**Absolute value**is a term used in mathematics to indicate the distance of a point or

**number**from the origin (zero point) of a

**number**line or coordinate system. This can apply to scalar or vector quantities.

Similarly one may ask, what is the absolute value of a number?

Absolute value describes the distance of a number on the number line from

**0**without considering which direction from zero the number lies. The absolute value of a number is never negative. The absolute value of 2 + 7 is 5.What is the difference between absolute and relative difference?

These relations may be expressed as either

**absolute**or**relative differences**. An**absolute difference**is a subtraction; a**relative difference**is a ratio. The**relative difference**is the ratio of the two risks. (NB:**Relative**risk,**relative**rate, rate ratios, and odds ratios are all examples of**relative differences**.)What are absolute and relative values?

**Relative**numbers or

**values**are dependent on other numbers. In other words, they are

**relative**to other (

**absolute**) numbers. Most often, those other

**absolute**numbers are not even given. For example 2 in 5 cars drive too fast on a road.