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Mathematics & Statistic Tutor Perth - SPSS Help   

Domain of Functions

The Domain of functions are values of x that give sensible answers not ones zooming off to the unknown when substituted into the expression.  Zero is a sensible answer but think twice before writing ‘undefined or does not exist’ as an answer.

The following functions are the ones that have a little twist so watch out for these  as not all x-values are valid.

Square root

Logarithm

Fraction