Chapter ONE Section THREE

EXPLORING REAL NUMBERZ

 

 

 

 Natural Numbers~ Positive, whole #'s EXCLUDING 0    ex. 1,2,3.....

 

 

Whole Numbers~ Positive, decimals #'s INCLUDING 0 ex. 0,1,2,3

 

 

Integers~ Negative and Postive, whole #'s ex. -2, -1, 0,1,2,3.....

 

 

Rational Numbers~ Any # that can be written in a/b form, in decimal form the # is terminating or repeating ex. 1/2, 8.222222, 6.48

 

 

Irrational Numbers~ A # that cannot be written in A/B form, in decimal form the number doesnt end or it isn't repeating ex. Pi, 1.23235438564896... the square root of 10

 

 

 

Together, all of these groups make up....

 

 

                                                          REAL NUMBERS!!!!

 

 

 

 

 

 

                                                        

 

 * Hopefully you already knew that "imaginary numbers" aren't a real number group

 

 

 

 COUNTER-EXAMPLE, a example that proves a statement false

 

 

Inequalities~ A mathematical sentence that compares the values of two expressions using < or >

 

 

 

 

                                                          

 

Apparently in the comic, triangle 1 > triangle 2 and they want triangle 1 = triangle 2

 

 

 

Opposites~ two #'s that are an equal distance from 0 but lie in opposite directions  ex. (3, -3) (2, -2)......

 

 

Absolute Value~ A #'s distance from 0 on a number line