What is #absx#?

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Answer 1 · 2017-09-09T02:42:23

See below

(i) The absolute value of a number on the real line is its distance from #0# (irrespective of sign).

(ii) The absolute function returns the positive value of its argument, whether the argument is posivive or negative.

Examples:

(i) #abs(-4) = 4#

(ii) #abs(x) = #positive # x forall x in RR#

The graph of #y=abs(x)# below should help demonstrate the absolute function.

graph{absx [-9.88, 10.12, -1.76, 8.24]}