SOLUTION: explain how you can tell whether a parabola opens upward, downward, to the left, or to the right

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Question 195478: explain how you can tell whether a parabola opens upward, downward, to the left, or to the right
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
explain how you can tell whether a parabola opens upward, downward, to the left, or to the right
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The x^2 or y^2 term is the deciding element.
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y = x^2 opens upward
y = -x^2 opens downward
x = y^2 opens to the right
x = -y^2 opens to the left
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Cheers,
Stan H.