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3 years ago

10

Find the vertex and focus of the parabola. x2 + 6x – 8y + 1 = 0

2 answers:

Mariana [72]3 years ago

7 0

Answer:

Focus. -3,1

Step-by-step explanation:

Serggg [28]3 years ago

7 0

Answer:

Step-by-step explanation:

Vertex: -3, -1

Focus: -3, 1

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For the function F defined by F(x) = x2 – 2x + 4, find F(b+3).

Ivanshal [37]

Answer:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

Step-by-step explanation:

We are given the function:

$\displaystlye F(x) = x^2 - 2x + 4$

And we want to find F(<em>b</em> + 3).

We can substitute:

$\displaystyle F(b + 3) = (b + 3)^2 - 2(b+3) + 4$

Expand:

$\displaystyle = (b^2 + 6b + 9) + (-2b -6) + 4$

Rearrange:

$\displaystyle = (b^2) + (6b-2b) + (9 - 6 + 4)$

Combine like terms. Hence:

$\displaystyle = b^2 +4b + 7$

In conclusion:

$\displaystyle F(b + 3) = b^2 + 4b + 7$

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3 years ago

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Neko [114]

Answer:21 members

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