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3 years ago

What is the first step in writing f(x) = 3x2 + 6x – 8 in vertex form?

Mathematics

2 answers:

belka [17]3 years ago

8 0

Answer:

D. Factor out 3 from the first two terms.

Step-by-step explanation:

According to the Vertex Formula [y = A(X - H)² + K], -H gives you the OPPOSITE terms of what they really are, but in this case, this would not qualify, since the question is asking something totally unique. So, since 3 is your "A", you factor that out, and since 6 is a multiple of 3, it is easy to work with. Anyway, you get this:

y = 3(x + 1)² - 11

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

kirza4 [7]3 years ago

4 0

Answer:

D. Factor out 3 from the first two terms.

Step-by-step explanation:

Vertex form is ...

y = a(x -h)² +k

where (h, k) is the vertex and "a" is the vertical scale factor.

This equation expands to give ...

y = ax² -2ahx + ah² +k

Factoring "a" from the terms involving x makes it easy to identify h and so finish putting the equation into vertex form. In this equation, that means the most appropriate first step is ...

factor out 3 from the first two terms

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Answer:

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Step-by-step explanation:

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1 year ago

Identify the radius for the circle in standard form

Lemur [1.5K]

The radius is 6
Complete the square on the equation and get
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3 years ago

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Group the terms with variables on one side of the equal sign and simplify.

Zepler [3.9K]

Answer:

9p = 54

Step-by-step explanation:

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Subtract 10p on both sides,

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2 years ago

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If inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year, what would you expect to pa

tamaranim1 [39]

Answer:

$76.5

Step-by-step explanation:

We have been given that inflation from last year to this year was 2% and a pair of designer jeans sold for $75 last year. We are asked to find the price of pair of designer jeans this year.

An inflation of 2% will increase the price of pair of jeans by 2%, so price of pair of jeans this year would be $75 plus 2% of $75.

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