RATIONAL+FUNCTIONS

"Rational function" is the name given to a function which can be represented as the quotient of polynomials, just as a rational number is a number which can be expressed as a quotient of whole numbers. Rational functions supply important examples and occur naturally in many contexts. All polynomials are rational functions.

You find the domain and zeros. **//__domain__//**- is any permited numbers (may **//__not__//** equal zero !!) **//__zeros__//**- values that make the expression equal zero (the numerator may equal zero)

Ex. 3p^2 - 7p +2 ..........3p^2 - 6p - p + 2 .............3p( p - 2) -1(p - 2) .................( 3p - 1) ( p - 2) ---...... .......... .............-- p^3 + p^2 - 12p ......p( p^2 + p - 12 ) ...............p( p + 4 )( p - 3 ) .................p( p + 4 )( p - 3 )

**D __//may not//__ = { 0, 3, -4 } Z= { 1/3, 2 }**

[|Rational Functions Link]