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I believe your answer is:
[tex]g(3) = -8[/tex]
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Here’s why:
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[tex]\boxed{\text{Evaluating the function...}}\\\\g(x)=-4x+4; g(3)\\\\--------------\\\rightarrow g(3)=-4(3)+4\\\\\rightarrow g(3) = -12 + 4\\\\\rightarrow \boxed{g(3)=-8}[/tex]
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Hope this helps you. I apologize if it’s incorrect.