SOLUTION: does the parabola open up or down? y=4+6x-2xsquared

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Question 237697: does the parabola open up or down?
y=4+6x-2xsquared
Answer by Photonjohn(42) About Me  (Show Source):
You can put this solution on YOUR website!
down
y=x^2 opens up
y= -x^2 opens down