Answer:
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Step-by-step explanation:
Answer:
They're both parabolas.
One is a parabola opening up (blue), the other one is opening down.
Step-by-step explanation:
In dutch, we call them what can be translated as mountain-parabolas and valley-parabolas.
I also saw the terms "concave up" and "concave down".
Step-by-step explanation:
148.Add both not that hard.