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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 |