Respuesta :

Answer:

f(2)= 5 and f(4)=9= -4

Step-by-step explanation:

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[tex]f(x) = 2x + 1[/tex]

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[tex]f(2) = 2(2) + 1[/tex]

[tex]f(2) = 4 + 1[/tex]

[tex]f(2) = 5[/tex]

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[tex]f(4) = 2(4) + 1[/tex]

[tex]f(4) = 8 + 1[/tex]

[tex]f(4) = 9[/tex]

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[tex]f(2) - f(4) = 5 - 9 = - 4[/tex]

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