3-1 Functions - 3-1: FunctionsA function from set X into...

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Unformatted text preview: 3-1: FunctionsA function from set X into set Y is a relation that associates with each element of X exactly one element of Y; however, one element of Y may be associated with more than one element of X. The domain is the set of all possible X elements; the range is the set of all possible Y elements. A function f(x) tells us what to do with the independent variable (x) in order to obtain the dependent variable (y).Determine whether the relation represents a function:(1) {(-2, 5), (-1, 3), (3, 5), (4, 12)}(2) x2 y + 1 = 0YesDomain: {-2, -1, 3, 4}Range: {5, 3, 12}(3) x2 + y2 = 4[4] y = 54x-Find the following values for each function: a. f (-3)b. f(5)c. f(x-3)[5] If f(x) =x2 + 3x - 5[6] If (292x - 1f x =x + 4If f(x) = 2x2 + 3x 1, find: [7] f(-x)[8] -f(x)[9] x if f(x) = 8Find the domain and range of the following functions:...
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This note was uploaded on 01/04/2012 for the course MAC 1105 taught by Professor Staff during the Fall '08 term at Miami Dade College, Miami.

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3-1 Functions - 3-1: FunctionsA function from set X into...

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