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SIZIF [17.4K]
3 years ago
7

I need help right away with the next problem.

Mathematics
1 answer:
Anna71 [15]3 years ago
5 0

Answer:

  see below

Step-by-step explanation:

To convert the numbers to percentages, divide each number by the table total (80) and multiply by 100%. That is equivalent to multiplying each number by 1.25%. For example, 18·1.25% = 22.5% (middle table number).

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What is the vertex of the graph of y = x2 + 4x?<br> (–2, –12)<br> (–2, –8)<br> (–2, –6)<br> (–2, –4)
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Answer: The vertex of the parabola (quadratic function) is (-2,-4)

Fourth option: (-2,-4)


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y=ax^2+bx+c; a=1, b=4, c=0

Vertex: V=(h,k)

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k=y=h^2+4h

k=(-2)^2+4(-2)

k=4-8

k=-4

Vertex: V=(h,k)

Vertex: V=( -2, -4)



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