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2 years ago

Read The question and give Me The answers for number 18

Mathematics

1 answer:

djverab [1.8K]2 years ago

3 0

Answer:

F(x) = 2.15(2x^2-4x-6)

x=9

F(x)= 2.15[2(9)^2 - 4(9) - 6

F(x)=258

$258

Your answer is B.

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2 years ago

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qwelly [4]

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Vertex is (-8, 4) not one of the answers offered!

Step-by-step explanation:

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Complete the square by squaring half the coefficient of x and adding it in the space.

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Add 64 in the space you made, then compensate for that at the end of the expression by subtracting $-\frac{1}{8}(64)=-8$

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