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13 votes
13 votes
Please help !!!

Will this parabola open upward or downward? How can you tell the direction that it opens from looking at the graph?
y = -5x² + 3x - 4

User SAndriy
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2.9k points

1 Answer

26 votes
26 votes

I know the parabola will open downward because the leading coefficient of the equation, being -5, is negative/less than zero.

User Jeff Langemeier
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3.2k points