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function
A function is a set of ordered pairs (x,y) such that no two distinct members have the same first element
real-life representations of a function
Member
Member
SSS No.
Mrs. Lagua
Mrs. Santos
33-16784
32-56712
33-12567
Ms. Sy
How can you determine whether the graph represents a function or not function?
Move your cursor here
(Vertical Line Test)
A graph is a function if any vertical line drawn passing through the graph intersects the graph at exactly one point
Piecewise
function
-A function which consists of a set of different intervals of x to define
Student
Teacher
David
Elaine
Benelyn
Mr. Ferrer
Mr. Llavore
Mrs. Caspe
Characteristics of a function
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Each element in set X must be matched with an element of set Y
-
Some elements in set Y may not be matched with any element in set X
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Two or more elements of set X may be matched with the same elements of set Y
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An element in set X cannot be matched with two different elements in set Y
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