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by: Rae Kutch

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2

# Plane Trigonometry MATH 128

Rae Kutch
WVU
GPA 3.8

Michael Mays

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COURSE
PROF.
Michael Mays
TYPE
Class Notes
PAGES
2
WORDS
KARMA
25 ?

## Popular in Mathematics (M)

This 2 page Class Notes was uploaded by Rae Kutch on Saturday September 12, 2015. The Class Notes belongs to MATH 128 at West Virginia University taught by Michael Mays in Fall. Since its upload, it has received 28 views. For similar materials see /class/202656/math-128-west-virginia-university in Mathematics (M) at West Virginia University.

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Date Created: 09/12/15
LetX and Y be two nonempty sets of real numbers A function fromXinto Y is a rule or a correspondence that associates with each element of X a unique element of Y The setX is called the domain of the function For each element x inX the corresponding element y in Y is called the image of x The set of all images of the elements of the domain is called the range of the function DOMAIN RANGE Which of the following relations are functions 1 1 2 4 3 9 3 9 A function 11112449 Not a function Theorem VerticalLine Test A set of points in the Jayplane is the graph of a function if and only if any vertical line intersects the graph in at most one point Not a function A function fx2x2 5 f x is the number that results when the number x is applied to the rule for f3 232 523 fx h 2xh2 5 2 2x2 2xh h25 2x2 4xh2h2 5 The domain ol a 11111011011 739 is the set of real numbers such thm the rule makes gx 3x375xl Domain of g is all real numbers 5t Domain ofs is tlt I 1 112 n2 z220 2272 Domain ofh is le 2 72 Domain 0 10 Range 3 3 10 0

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