Question 478794: State whether the parabola opens or downward.
1.y=-4+xsquare
2.y=7-xsquare
3.y=2-5x-3xsquare
4.y=2xsquare-3x-2 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! State whether the parabola opens or downward.
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Quadratic form: y = ax^2 + bx + c
If a > 0 the parabola opens up.
If a < 0 the parabola opens down.
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1.y=-4+xsquare:::up
2.y=7-xsquare::down
3.y=2-5x-3xsquare::down
4.y=2xsquare-3x-2::up
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cheers,
Stan H.
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