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# Does each graph represent a function? why?

• Réponse publiée par: nelgelinagudo
Represent a FUNCTION Functions is a focal concept of extreme importance in modern mathematics is the idea of functions.  Functions, which deal with corresponding relationship between the elements of two sets, are useful concepts throughout the mathematics curriculum. A function is a relation where each element in the domain is related to only one value in the range by some rule.  A function is a set of ordered pairs (x,y) such that no two ordered pairs have the same x-value but different y-values. Using functional notation, we can write f(x) = y, read as “f of x is equal to y.” In particular, if (1, 2) is an ordered pair associated with the function f, then we say that f(2) = 1. Read the details about the function in

ANSWER: yes it is a function because it pass in vertical line test which the verical line test is  no vertical line intersects the graph in more than one point.
• Réponse publiée par: Laurenjayshree

the answer to the question is x-1

• Réponse publiée par: kuanjunjunkuan