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melisa1 [442]
3 years ago
11

15. See the image below:

Mathematics
1 answer:
Lunna [17]3 years ago
3 0

Answer: me personally i think B

Step-by-step explanation:

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equation of a parabola in vertex form:  y = a(x - h)² + k

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Substituting the given vertex (-3, -18) into the equation:

y = a(x + 3)² - 18

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so x = 3 - 3 = 0  

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