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delayne22
26.06.2019 •
Mathematics
Determine the direction that this parabola opens y=x^2-6x
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Ответ:
the graph of the parabola opens upwards.
Step-by-step explanation:
For any quadratic equation of the form
if the main coefficient "a" is negative then the graph of the parabola opens downwards.
If the main coefficient "a" is positive, the parabola opens upwards
In this case the parabola is![y=x^2-6x](/tpl/images/0018/7281/3fe0d.png)
Note that
and
therefore the graph of the parabola opens upwards.
Ответ:
We know that the number of workers doubles every week.
This implies that the number of workers of the previous week is exactly half of the current one's.
So, it took 11 weeks for the factory to be at half capacity.