Question 586742: Does this parabola open down because of the negative? or up because the x is squared? y = -2x2 + 5x - 2 Answer by ad_alta(240) (Show Source):
You can put this solution on YOUR website! It opens down. Think about it this way: anything squared is positive, so putting a negative in front ensures the result is negative (the other terms affect the shape of the parabola, but not whether it opens up or down).