Which graph represents a function? how do you know?

The graph which is a function is graph  D

Set A to set B is said to be a function if each member of set A pairs is exactly one member of set B

So, one value of x is only assigned to one value of y

A function can be expressed in the form of a cartesian diagram, sequential pairs, or arrow diagram

If y is a function of x, then y = f (x)

where x is the independent variable and y is the dependent variable

x is the domain and y is the result area or range

There are several forms of function including:

One of the features mentioned above is that the function graph must map each domain member (x value) with one codomain member value y

So the graph is not a function if a graph that has one or more domain members is paired with more than one member of the codomain

If we look at graphs A, B and C, for the same x value has a different y value

So that it can be concluded that the graph which is a function is graph D

F (x) = x2 + 1 g (x) = 5 - x

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the inverse of the function f (x) = 2x-10

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domain of the function

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Keywords: domain, codomain, function, graphic

the correct is answer is a 9-sided polygon!

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