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Akimi4 [234]
3 years ago
13

What is the vertex of the parabola f(x) = x2 + 8x + 12?

Mathematics
1 answer:
Serjik [45]3 years ago
3 0
(-4,-4) B
just for extra space.
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R is just the symbol for all real numbers. Also know as infinitely many solutions.

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Answer:

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\left\{\begin{array}{ccc}-2x+y=1\\-4x+y=-1&\text{change the signs}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-2x+y=1\\4x-y=1\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2x=2\qquad\text{divide both sides by 2}\\.\qquad x=1\\\\\text{Put it to the first equation:}\\\\-2(1)+y=1\\-2+y=1\qquad\text{add 2 to both sides}\\y=3

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Answer? with solution please. Will automatically report kung wala:)
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Communitive only works with multiplication and addition. It states that if you have something adding or subtracting something switched around, they are the same. B has that so the answer is B

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