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F(x) = -x sqaured + 5x + 15Find f(9)
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F(x) = -x sqaured + 5x + 15Find f(9)

User Farhan C K
by
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1 Answer

2 votes

The given function is


f(x)=-x^2+5x+15

The expression f(9) means we have to evaluate the function when x = 9.


f(9)=-(9)^2+5(9)+15=-81+45+15=-21

Hence, f(9) = -21.

User Aditya Bhatt
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