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hjlf
3 years ago
14

Evaluate the function. f(x)=−x^2 −6x+12 Find f(4)

Mathematics
1 answer:
Svetlanka [38]3 years ago
4 0

1. How to find f(4)?

  • I explained how to find f(5) in your previous question. It is exactly the same. We substitute x = 4 in the equation.

2. Substitution and Evaluate

\large{f(4) =  -  {(4)}^{2}  - 6(4) + 12}

Follow BODMAS/PEMDAS rules as well! Exponent first.

\large{ f(4) =  -  16 - 24 + 12} \\  \large{f(4) =  - 40 + 12} \\  \large{f(4) =  -2 8}

3. Final Answer

  • f(4) = -28.
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