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Elden [556K]
3 years ago
7

What is the equation of the graph below? A graph shows a parabola that opens up and crosses the x axis at negative two and negat

ive four. y = − (x − 3)2 + 1 y = − (x + 3)2 + 1 y = (x − 3)2 − 1 y = (x + 3)2 − 1
Mathematics
2 answers:
Brrunno [24]3 years ago
6 0

Answer:

y = (x+3)^2 - 1

Step-by-step explanation:

Anastaziya [24]3 years ago
4 0

Answer:

y=(x+3)^{2} -1

Step-by-step explanation:

General equation of a parabola that opens up is y=a(x-h)^{2} +k , a>0

So equation becomes y=(x-h)^{2} +k which implies option A and option B can never be true for this parabola.

Also this parabola's vertex lies in 3rd quadrant where coordinates of both x and y will be negative.

So, the equation of parabola will be of the form y=(x+h)^{2} - k

Hence, option 4 that is y=(x+3)^{2} -1 is correct.


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Thank you for posting your question here at brainly. Feel free to ask more questions.  

The best and most correct answer among the choices provided by the question is <span>D.300°</span>.<span>       
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Hope my answer would be a great help for you.</span>
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What are the coordinates of R' after a dilation by a scale factor of 3, centered at the origin, followed by the translation (x,
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9514 1404 393

Answer:

  C.  (9, 18)

Step-by-step explanation:

Given R(3, 5), a dilation by a factor of 3 will multiply each coordinate to give ...

  (9, 15)

Then the translation up by 3 will give you the image coordinates ...

  (x, y) ⇒ (x, y+3)

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The coordinates of R' are (9, 18), matching choice C.

_____

<em>Comment on multiple choice answers</em>

As it often does, here it works to "guess" the answer that has the coordinates that are most-repeated. An x-coordinate of 9 is part of 3 answer choices; a y-coordinate of 18 is the only repeated value in the answer choices. If you were to guess, an appropriate guess would be (9, 18). That happens to be correct in this case.

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