Prime Number - Answerswhole number that has only 2 factors (1 and itself)
Composite Number - Answerswhole number that has factors in addition to 1 and itself
0 & 1 - AnswersNeither prime nor composite
Even Numbers - AnswersComposite (because they are all divisible by two)
Numbers that end in 5 - AnswersComposite (because they are all divisible by 5)
Prime Numbers up to 20 - Answers2, 3, 5, 7, 11, 13, 17, 19
Interval - AnswersConnected portion of the real line
Closed Interval - AnswersFilled in circles & [ ]
Open Interval - AnswersOpen circles & ( )
Rational Number - AnswersNumber that can be written as a ratio/fraction
Ex: 8 = 8/1 3/4 7,344/123,239
*EVERY WHOLE NUMBER*
Irrational Number - AnswersNumber that can be written as a decimal but not a fraction
Ex: pi= 3.141592... square root 2= 1.414213
Absolute Value - Answersdistance from 0 |x|
Ex: |3|=3 |-3|=3
*never negative*
Factors - AnswersNumbers you multiply to get another number
Prime Factorization - AnswersList of prime numbers that are factors of a number
Ex: prime fac of 8 = 2X2X2
*Take number and divide it by smallest prime that goes into it*
Relation - AnswersRelationship between sets of information
Domain - Answersset of all starting points; x
Range - Answersset of all ending points; y
, All functions are _________ but not all ______ are functions. - AnswersRELATIONS
Well-behaved Function - Answersrelation that has only one y when given one x
*Can't share * None can not be matched *
If you can draw a _______________ through two points it is NOT a function - AnswersVERTICAL LINE
Linear Function - Answersf(x)=x
D: (-inf, inf)
R: (-inf, inf)
*Diagonal Line*
Constant Function - Answersf(x)=c
D: (-inf, inf)
R: (y|y=c)
*Horizontal Line*
Quadratic Function - Answersf(x)=x^2
D: (-inf, inf)
R: [0, inf)
*Smile/Increases Quickly*
Cubic Function - Answersf(x)=x^3
D: (-inf, inf)
R: (-inf, inf)
*Mirror Half Quadratic*
Square Root Function - Answersf(x)=sq rt x
D: [0, inf)
R: [0, inf)
*Sideways Quadratic*
Absolute Value Function - Answersf(x) =|x|