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Anna11 [10]
3 years ago
7

What is the vertex of this equation y = -x^2+ 3

Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer: (0,3)

Step-by-step explanation: To find the x-value of the vertex for any quadratic, you can use the formula -b/2a. In this case, there is no clear b, but you can think of it like y=-x^2 +0x+3 so in the form ax^2 + bx +c, b=0. Therefore the x-value is 0/ -2, or 0. So we know the vertex is (0, y). To find y, just plug 0 into the original equation for x, getting you y=0+3, so y=3, so the vertex is (0,3)

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Find a1 and d for an arithmetic sequence with these terms. a3=-8 and a7=32
Arte-miy333 [17]
We know that
the formula for the <span>arithmetic sequence is
</span><span>an = a1 + (n - 1)*d
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a1  is the first term
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----------------
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the answer is
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<span>

</span>
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