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12.1-12.4 Quiz Definitions
N/A
11
Mathematics
9th Grade
04/03/2012

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Term
direct variation
Definition
y=ax and a≠0
Term
inverse variation
Definition
y=a/x and x≠0
Term
constant of variation
Definition
nonzero number a
Term
hyperbola
Definition
graph of the inverse variation equation y=a/x (a≠0)
Term
branches of the hyperbola
Definition
the two symmetrical parts of a hyperbola
Term
asymptotes of the hyperbola
Definition
the lines that the hyperbola approaches but doesn't intersect with
Term
rational function
Definition
a rule given by a fraction whose numerator and denominator are polynomials and whose denominator is not 0
Term
parent rational function
Definition
y=1/x
Term
rational expression
Definition
an expression that can be written as a ratio of two polynomials where the denominator is not 0
Term
excluded value
Definition
a number that makes a rational expression undefined
Term
rational expression is in simplest form
Definition
the numerator and denominator have no factors in common other than 1
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