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3 years ago

F(x) =-x^2+x+13 find f(9)

Mathematics

2 answers:

Sever21 [200]3 years ago

7 0

Answer:

f(9) = - 59

Step-by-step explanation:

Substitute x = 9 into f(x) , that is

f(9) = - (9)² + 9 + 13

= - 81 + 22

= - 59

ludmilkaskok [199]3 years ago

4 0

Answer:

-59

Step-by-step explanation:

f(x) =-x^2+x+13

Let x = 9

f(9) = - (9)^2 +9+13

= -81 +9+13

= -59

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2 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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