Domain Condition for Rational Functions
For a rational function y = (P(x))/(Q(x)), its domain requires the denominator to be non - zero. Formula: x ∈ R Q(x) eq 0 Applicable Conditions: P(x) and Q(x)…
Syllabus path: Functions › Concepts and Properties of Functions › Domain of a Function
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CSCA Mathematics Formula Reference
Formula and explanation
For a rational function y = (P(x))/(Q(x)), its domain requires the denominator to be non - zero. Formula: x ∈ R Q(x) eq 0 Applicable Conditions: P(x) and Q(x) are polynomials or rational expressions. Brief Explanation: A denominator of zero makes the function value undefined, so these points must be excluded.
Related tutorial and examples
Domain of a Function
Domain of a Function 1. Concept The domain of a function is the set of all possible values for the independent variable x. It is one of the three essential elements of a function. Simply put, the domain consists of all real numbers x for which the function y = f(x) is defined (ma…
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