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garik1379 [7]
3 years ago
12

F(x)=-3x^2-6x Find f(−9)

Mathematics
2 answers:
White raven [17]3 years ago
5 0

Answer:

f(-9)= -189

Step-by-step explanation:

f(-9)= -3(-9)^2-6(-9)

f(-9)= -3(-9)^2 +54

f(-9)= -3(81) +54

f(-9)= -243 + 54

f(-9)= -189

Anni [7]3 years ago
3 0

Answer:

Your brain.

Step-by-step explanation:

All you have to do is plug the value of -9 into the equation everywhere you see an 'x' and if you are being asked this question I assume you have basic mathematical skills

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