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sergij07 [2.7K]
4 years ago
10

The equation x=ay^2 describes a parabola if the value is a positive which way does the parabola open

Mathematics
1 answer:
aleksandr82 [10.1K]4 years ago
5 0
You can always make up numbers and try to draw it. 
Let's say a = 1 for sake of simplicity.

If y=0 then x=0
<span>If y=1 then x=1
</span><span>If y=-1 then x=1
</span><span>If y=2 then x=4
</span><span>If y=-2 then x=4
</span>
As you can see, parabola opens to the right. Try drawing it to make sure you believe that. 
Keep in mind, parabola only opens to the right if you are using the conventional x-y plane, where x-axis is horizontal and y-axis is vertical.
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A shopping channel shipped 467,023 packages last year. What is a reasonable estimate of the number of packages shipped?
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<span>The number is 470, 000


To explain further:
An example is
14,494 </span>
<span>To round off the height value to the nearest thousand we can use the expanded from to clarity the position of numbers which is: </span>
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<span>Here we can notice than four thousand is the value where the nearest thousands is placed. Hence we can round off the number of 14, 494 into 14, 000. Notice 0-4 rounding off rules.<span>
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3 years ago
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Prime

Step-by-step explanation:

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