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40 votes
40 votes
98. Explain in your own words, how you can tell from its equation whether a parabola opens up, down, left or right.

User Gert Steyn
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1 Answer

4 votes
4 votes

Answer:

The same way you tell if a parabola opens up or down, by the leading coefficient of the variable.

Explanation:

Since the x-axis is positive to the right, a positive leading coefficient (3) means it opens to the right. eg. And a negative leading coefficient (-2) means it opens to the left.

User Yenny
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