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choli [55]
3 years ago
13

X 5.2.19

Mathematics
1 answer:
Semmy [17]3 years ago
7 0

Answer:

Step-by-step explanation:

y = ax² + bx + c

Plug the points into the equation to get a system of 3 equations with 3 unknowns a, b, and c.

-27 = 4a - 2b + c

-42 = 9a + 3b + c

-12 = a + b + c

(a,b,c) = (-4,1,-9)

y = -4x² + x - 9

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Answer:

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Step-by-step explanation:

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