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The parabola (showed in the picture) opens?
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The parabola (showed in the picture) opens?

The parabola (showed in the picture) opens?-example-1
User Jason Scheirer
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1 Answer

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Explanation:

x = sqrt (y-9) square both sides

x^2 = y-9 add 9 to both sides

y = x^2 + 9 <====== this parabola has a POSITIVE x^2 coefficient ( +1)...

so it is bowl shaped and opens UPWARD

User Peter Lewis
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