## Math VOcab ch1

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emily2  on September 26, 2010

CH 1 MATH VOCAB

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# Math VOcab ch1

 coefficientthe numerical factor of a term
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#### Definitions

coefficient the numerical factor of a term
conditional statement if a then b, has two parts, a hypothesis and a conclusion
continuous function a function graphed w/ a line or smooth curve
coordinate system the grid formed by the intersection of two number lines, the horizontal axis and the vertical axis
counterexample specific case in which the hypothesis is true but hte conclusion is false
deductive reasoning the process of using facts, rules, and definitions to reach a valid conclusion
dependent variable a variable in a relation with a value that depends on the value independent variable
discrete function graph that consists of points that are not connected
domain set of first numbers of ordered pairs
function relation in which each element of the domain is paired with exactly one element of the range.
hypothesis part of a conditional statement immediately following the word if
independent variable varaible in a function with a value that is subject to choice
inequality open sentence that contains the symbols: <,≤,> or ≥
like terms terms that contain the same variables, with corresponding variables having the same exponent
open sentence mathematical statement with one or more variables
order of operations PEMDAS-rule to know which operation comes first in a numerical expression
power expression like x^n is raised to the power of n
principal square root nonnegative square root
range second set of numbers of ordered pairs
solution set (of open sentence) set of elements from the replacement set that make the open sentence true
variable symbols used to represent unspecified numbers or values

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emily2