beast39372 beast39372

22-08-2021
Mathematics

contestada

f(x)=-x^2-4x-19

Find f(−9)

Respuesta :

cwrw238 cwrw238

22-08-2021

Answer:

-64.

Step-by-step explanation:

f(x)=-x^2-4x-19 Replacing x by -9:-

f(-9)= -(-9)^2-4(-9)-19

= -81 + 36 - 19

= 36 - 100

= -64.

Answer Link

wegnerkolmp2741o wegnerkolmp2741o

22-08-2021

Answer:

-64

Step-by-step explanation:

f(x)=-x^2-4x-19

Let x = -9

f(-9) = - (-9)^2 -4(-9) -19

= -81 +36 -19

=-64

Answer Link

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