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saw5 [17]
4 years ago
11

Find the vertex of the graph of the function. f(x) = 2x^2 - 8x + 9

Mathematics
1 answer:
Rashid [163]4 years ago
5 0

\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ f(x)=\stackrel{\stackrel{a}{\downarrow }}{2}x^2\stackrel{\stackrel{b}{\downarrow }}{-8}x\stackrel{\stackrel{c}{\downarrow }}{+9} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left(-\cfrac{-8}{2(2)}~~,~~9-\cfrac{(-8)^2}{4(2)} \right)\implies \left( \cfrac{8}{4}~~,~~9-\cfrac{64}{8} \right) \\\\\\ (2~~,~~9-8)\implies (2~~,~~1)

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Answer:

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Step-by-step explanation:

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5 0
3 years ago
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Answer:

S.A. = 150.72

Step-by-step explanation:

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4 x 4 x 3.14 = 50.24

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5 0
3 years ago
last month, steven had $4285.68 that he divided into two accounts. he deposited 1/3 into a savings account. he deposited the res
Hunter-Best [27]
So, the first thing that you have to do is figure out what fraction of the money Steven deposited in his checking account.  If he deposited 1/3 into his savings account, you would subtract that fraction from the whole (1) to get 2/3.  

Now, you know that Steven deposited 2/3 of $4285.68 into his checking account.  You multiply these two things together, to find the total amount Steven deposited in his checking account.

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3 0
3 years ago
Stephen does not like yogurt very much, but he loves
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3 years ago
Please help. 1. The population of a town was 500 in 2010. The population grows at a rate of 9.6% annually. (a) Use the exponenti
pogonyaev

Answer:

Ok I did the math. t= 1248.

Step-by-step explanation:

Multiplying 500 by 9,6% is the start. Then, multiply ever number after that. Ex. 500 x 9.6%=548.  Then multiply 548 by 9.6% and so on. Hope this helps!!

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3 years ago
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