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Flashcards in Algebra Deck (31)
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1

Quantity

Anything that can be measured or counted

2

Variable Quantities

Values that can change or vary

3

Variable

A symbol, usually a letter, that represents the value of a quantity.

4

algebraic expression

a mathematical phrase that includes one or more variables.

5

numerical expression

a mathematical phrase involving numbers and operation symbols, but no variables

6

power

has a base part and an exponent part

7

exponent

tells you how many times to use the base as a factor

8

factor

numbers that are multiplied to find a product

9

base

the factor that is repeated in a power

10

simplify

a numerical expression that is replaced with its single numerical value

11

evaluate

replacing each variable with a given number and calculate

12

perfect square

the square of an integer

13

square roots

the number that was multiplied by itself to find a product

14

principal square root

non-negative square root

15

radicand

expression under the square root symbol

16

radical

square root symbol and radicand together

17

set

a well-defined collection of objects

18

elements

each object in a set

19

subset

consists of elements from within the given set

20

rational numbers

any number that you can write as a fraction. i.e. 1/2

21

natural numbers

counting numbers starting at one and going higher {1,2,3,...}

22

whole numbers

counting numbers and including zero. i.e. {0,1,2,3,...}

23

integers

whole numbers and including their opposites. i.e. {...-2,-1,0,1,2,...}

24

irrational numbers

cannot be written as a fraction

25

real numbers

the set of rational and irrational numbers

26

equivalent expressions

algebraic expressions that have the same value for all values of the variables

27

commutative properties

order of addition doesn't matter; order of multiplication doesn't matter

28

associative properties

order of addition doesn't matter; order of multiplication doesn't matter

29

additive identity property

adding zero to a value keeps the value the same

30

zero property of multiplication

the product of a value and zero is always zero

31

multiplication property of -1

the product of a value and -1 is always the opposite of the value.