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13-01-2019
Mathematics

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determine the direction that this parabola opens y=x^2+2x+8

up or down

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altavistard altavistard

13-01-2019

Answer:

up

Step-by-step explanation:

The standard equation for a parabola is y = ax^2 + bx + c. If the coefficient a is positive, then the curve (graph) opens up.

In y=x^2+2x+8 this coefficient is +1, so the curve opens up.

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