Question 10244
As you might suspect, rational and irrational numbers are opposite types of numbers.  A rational number is any number that can be expressed as a RATIO (that's where they get the name RATIOnal number!) of two integers.  That is, a rational number consists of all fractions, whole numbers, and terminating decimals (that is, decimals that come out even), or repeating decimals (that is, decimals that repeat a pattern).  


Irrational numbers include numbers such as {{{sqrt(2)}}},{{{sqrt(3)}}},{{{ sqrt(5)}}}, {{{pi}}}, {{{pi/2}}}, and other "strange" numbers that NEVER come out even and never repeat a pattern.


Together, the rational and irrational numbers make up the real numbers, which includes all numbers that can be located anywhere on the real number line.


R^2 at SCC