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L1, 1-4
Algebra 2
Question | Answer |
---|---|
natural numbers | counting numbers |
whole numbers | counting numbers and 0 |
integers | positive integers, negative integers, & 0 |
rational numbers | quotients of integers (nonzero denominator), terminating decimal, repeating, |
irrational numbers | nonquotients of integers, nonterminating or repeating, if positive rational number isn't a perfect square |
real number | natural, whole, integer, rational, & irrational. not imaginary |
opposite/additive inverse | opposite value of number. b is -b. |
reciprocal/multiplicative inverse | the product of reciprocals is 1. b is 1/b |
closure property | a+b is a real number. ab is a real number |
commutative property | a+b = b+a. ab = ba |
Associative property | (a+b)+c = a(b+c).(ab)c = a(bc). |
Identity property | a+0=a, 0+a=aa*1=a, 1*a=a |
inverse property | a+(-a)=0a * 1/a =1, not 0 |
distributive property | a(b+c)=ab+ac |
absolute value | how far a number is from 0. |
variable | letter symbol for a number |
algebraic expression | expression with 1 or more variables |
variable expression | expression with 1 or more variables. |
evaluate | substitute numbers for variables and do order of operations. |
term | number, variable, or product of a number and one or more variables |
coefficient | number in a term |
subtraction | subtract |
division | divide |
dist. property for subtraction | dist. property and subtract |
multiplication by 0 | product is 0 |
multiplication by -1 | product is negative |
opposite of a sum | -(a+b)= -a+(-b) |
opposite of a difference | -(a-b)=b-a |
opposite of a product | -(ab)=-a*b |
opposite of an opposite | positive number |
solution of the equation | number that makes an equation true |
reflexive property | a=a |