SOLUTION: How do you determine if the graph opens upward or downward?

SOLUTION: How do you determine if the graph opens upward or downward?

Algebra.Com

Question 508524: How do you determine if the graph opens upward or downward?

Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
If you are referring to a parabola, look at the x^2 coefficient and whether it is positive or negative.
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