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# algebra 1 ECO

### vocabulary

TermDefinition
y-axis the vertical axis on a coordinate grid
quadrants the four parts to a coordinate grid
origin the points(0,0)on a coordinate grid
relation set of ordered pairs
function a set of ordered pairs where the x's do not repeat
domain the x values to a set of ordered pairs
a-axis the horizontal axis on a coordinate grid
range the y values to a set of ordered pairs
discrete individual points that would not be connected when graphed because all the real values can be defined in the domain
ordered pairs a point in the form of (x,y) or (x,(f(x)
variable a letter used to represent a quantity in algebra
vertical line test a method used to determine if a graph is a function
correlation the trend for a set of data it can be positive negative constant or no correlation
independent variable the x value of the function also called the domain
dependent variable the y value of the function also called the range
the symbol f(X) means y
evaluate to solve
commutative property the order of the numbers change
associative property the groups change (parenthesis change)
Distributive property the numbers in a sum or difference are both multiplied by the same value
simplify make the problem smaller by combining like terms
like terms terms that have the same variable or same terms variable with the same exponents
ratio comparison of two quantities
proportion comparison of two ratios.
inequality an algebraic expression that uses the symbols <,>.