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Graph of a function

A typical function can be expressed as

y = f(x)

which means we can give x any value and we obtain a value for y

It's said that y depends on x

The equation given in the question has the form

x = -3

Note there is no y in the equation, which means the value of y is unknown, only the value of x is certain.

In other words, when x = -3, y can have any value, and no other value of x can be used

The graph of the function is shown below

The graph is shown as a red line

for a relation to be a function, each value of x must have one and only one value of y

the relation is not a function because the only value of x has many values of y

Ver imagen MarcelloO320178
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