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lapo4ka [179]
3 years ago
9

Find the vertex of y = x2 + 14x − 40 by completing the square. A. (−7, 89) B. (−89, −7) C. (7, 89) D. (−7, −89)

Mathematics
1 answer:
irga5000 [103]3 years ago
8 0

Alright, lets get started.

y = x^2 + 14 x - 40

For making complete square, we will add and subtract 49 in this

y = x^2 + 14 x - 40 + 49 - 49

y = x^2 + 14 x + 49 -40 - 49

y = (x+7)^2 - 40 - 49

y = (x+7)^2 - 89

Comparing the standard equation of parabola

y = a (x-h)^2 + k where (h,k) are vertex

So, comparing the equation with standard one, h, k would be = (-7 , -89)

So, the vertex are (-7 , -89) : Answer

Hope it will help :)

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Answer:

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Susan makes 5 fruit cups for the picnic. In each cup, she has 5 strawberries and 3 kiwi. Joanna uses the same number of total fr
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Answer:

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Step-by-step explanation:

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I have way more questions than this answer them if you want pleaseee!!
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The right answer is Option C.

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The right answer is Option C.

Keywords: inequality, division

Learn more about division at:

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#LearnwithBrainly

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