SOLUTION: Evaluate the function f(x) = -x^2 + 5 for x = 4

Question 408760: Evaluate the function f(x) = -x^2 + 5 for x = 4
Found 3 solutions by rfer, stanbon, jim_thompson5910:
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
f(4)=-4^2+5
f(4)=16+5
f(4)=21
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Evaluate the function f(x) = -x^2 + 5 for x = 4
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f(4) = -4^2+5 = -16+5 = -11
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Cheers,
Stan H.
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Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given equation.

Plug in .

Square to get .

Multiply and to get .

Combine like terms.

So the solution is

If you need more help, email me at jim_thompson5910@hotmail.com

Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you

Jim
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