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27-08-2019
Mathematics

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y=4x^2+4 opens upward or downward

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marcthemathtutor marcthemathtutor

27-08-2019

Answer:

upward

Step-by-step explanation:

y=4x²+4

Look at the coefficient of x²

If it is positive, it opens upward, IF it is negative, it opens downward.

In this case, the x² coefficient is +4, hence it opens upward

(see attached for plot)

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