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miss Akunina [59]
3 years ago
5

Fill in the blanks concerning the following quadratic function: f(x)=−x2−4x+5

Mathematics
1 answer:
gayaneshka [121]3 years ago
4 0

Answer:

Step-by-step explanation:

Given quadratic function is,

f(x) = -x² - 4x + 5

Leading term of the quadratic function is 'x²'

Coefficient of this leading term is (-1).

Now we will convert this standard equation into vertex form,

f(x) = -x² - 4x + 5

     = -(x² + 4x) + 5

     = -[x² + 2(2x) + 4 - 4] + 5

     = -[x² + 2(2x) + 2²] + 4 + 5

     = -(x + 2)²+ 9

f(x) = -(x + 2)² + 9

Since, coefficient of the leading term is negative the parabola will open downwards.

Vertex form of the function is given by,

g(x) = -(x - h)² + k

(h, k) is the vertex.

By comparing the equation of the function 'g' with the function 'f',

(-2, 9) will be the vertex of the function which is the maximum point of the function.

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To find the area of the head of the nail you need to use the*

> A= π*r^2* A equals area, π equals pi(3.14) and then you square your raidius, which is 6 in your case.

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