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let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?​

Sagot :

Given:

[tex]f=\{(1,2),(2,3),(5,6),(7,8)\}[/tex]

To find:

The values of f(2) and f(5).

Solution:

If an ordered pair [tex](x,y)[/tex] is in the function [tex]f[/tex], then [tex]f(x)=y[/tex].

In the given set of ordered pairs one ordered pair is (2,3). So, by using the above definition, we get

[tex]f(2)=3[/tex]

In the given set of ordered pairs one ordered pair is (5,6). So, by using the above definition, we get

[tex]f(5)=6[/tex]

Therefore, the value of f(2) is 3 and the value of f(5) is 6.

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