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
