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Darya [45]
3 years ago
8

Determine the vertex by completing the square. Show process. y = x2 -6x + 22

Mathematics
1 answer:
Vilka [71]3 years ago
8 0

Answer:

(3,13)

Step-by-step explanation:

y=x^2-6x+22\\y=x^2-6x+22+3^2-3^2\\y=(x-3)^2+22-9\\y=(x-3)^2+13

Note that by vertex form we have:

y=a(x-h)^2+k

Where the vertex has the coordinates (h,k) so we change the sign of h and keep the same k value and so:

h=3 and k=13

Therefore the vertex of this parabola is: (3,13)

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Answer:

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Step-by-step explanation:

7x+1.1=-3.8

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divide both sides by 7

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       ↓
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             <u>    + 9 + 9</u>
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