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3 years ago

I need help this is timed i will mark u as brainliest.

Mathematics

2 answers:

dezoksy [38]3 years ago

4 0

Answer:

-8

Step-by-step explanation:

Irina-Kira [14]3 years ago

4 0

Answer:

I'm not very sure but it might be 12.

I'm very sorry if this is incorrect and I am going to vote myself 2 stars so you see this last

i-i dont deserve these points

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Hey can I have some quick help please?<br> Is the answer I chose correct?

Gennadij [26K]

Answer:

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3 years ago

(3,-4) (3, 10)<br> What is the slope of the 2 set of points

sineoko [7]

Answer:

The slope is undefined

Step-by-step explanation:

The change in x is 0. So you have change in y over 0, which is undefined.

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What is the slope of (-18,-20),(-18, -15)

Rzqust [24]

Answer:

Undefined.

Step-by-step explanation:

$m = \frac{rise}{run}$

$m = \frac{ - 15 - ( - 20)}{ - 18 - ( - 18)} \\ m = \frac{ - 15 + 20}{ - 18 + 18} \\ m = \frac{5}{0}$

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3 years ago

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Sergeu [11.5K]

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Write the quadratic function in standard form.<br> f(x) = -x2 + 2x + 4<br> f(x) =

goldenfox [79]

Answer:

$f(x)=-1(x-2)^2+8$

Step-by-step explanation:

Given:

The quadratic function is given as:

$f(x)=-x^2+2x+4$

The standard form of a quadratic function is given as:

$f(x)=a(x-h)^2+k$ , where, 'a', 'h' and 'k' are real numbers.

Now, in order to convert the given function to standard form, we use completing by square method.

$-x^2+2x=-(x^2-2x)=-[(x-2)^2-2^2]=-[(x-2)^2-4]=-(x-2)^2+4$

Now, $f(x)=-x^2+2x+4$ can be rewritten as:

$f(x)=-(x-2)^2+4+4\\f(x)=-1(x-2)^2+8$

Therefore, the standard form of the function is:

$f(x)=-1(x-2)^2+8$

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3 years ago