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Pre-Algebra Ch. 8

Vocabulary words for Prentice Hall Pre-Algebra


AB
Domaina set of first coordinates of the ordered pair of a relation
functionA relationship in which each member of a domain is paired with exactly one member of the range. A number of a domain is an input and the related number of the range is the output.
negitave correlationas one set of values increases, the other set tends to decrease.
Positive correlationas one set of values increases, the other set tends to increase.
rangethe set of second coordinates of the ordered pair of relations.
scatter plota graph that displays data from two related sets as ordered pairs.
slopea ratio that describes a tilt of a line.
slope intercept forman equation in the form y=mx+b, where m is the slope and b is the y-intercept.
vertical line testa test that allows you to describe graphically whether a relation is a function.
y-interceptthe y-coordinate of the point where the line crosses the y-axis.