Respuesta :

Given the function :

[tex]f(x)=-x^2+7x-13[/tex]

To find f(-3) , substitute with x = -3 , into the given function:

So,

[tex]\begin{gathered} f(-3)=-(-3)^2+7\cdot-3-13 \\ \\ f(-3)=-9-21-13 \\ \\ f(-3)=-43 \end{gathered}[/tex]

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