Algebra 1 vocabulary Flashcards
Irrational Numbers
Numbers that cannot be written as a/b, where a and b are integers and b=0; any number that cannot be written as a decimal that ends or repeats.
Natural Numbers
The set of positive integers{1,2,3,…,n}
Rational Numbers
A number that can be written as a/b, where a and b are integers and b=0; any number that can be written as a decimal that ends or repeats.
Real Numbers
The set of all rational and irrational numbers
Whole Numbers
The set of natural numbers that also includes 0:{1,2,3,…}
Integers
A number that is not a faction or a decimal
Curve
The graphical representation of the solution set for y=f(x); in the special case of a linear equation, it will be a line
Solution Set
The set of ordered pairs that represent all of the solutions to an equation or a system of equations
Relation
An ordered relationship between two sets of elements
Function
A relation in which every element of a domain is paired with exactly one element of the range; that is, for every value x, there is exactly one value y.
Independent Variable
Is the input variable of a function
Dependent Variable
Is the output variable of a function
Ordered Pair
A pair of values (x,y) where the order is significant
Domain
The set of all inputs of a function; the set of x-values that are valid for the function
Range
The set of all outputs of a function; the set y-values that are valid for the function
