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Earn +20 ptsQ: If the parabola open upward a is?
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What way does the parabola open if a is greater than 0?
If a is greater than zero then the parabola opens upward.
How does the value of a variable affect the direction the parabola opens?
If the value of the variable is negative then the parabola opens downwards and when the value of variable is positive the parabola opens upward.
How does the graph of y 4x2 compare to the graph of y x2?
Their noses are both at the origin, and they both open upward, but y=4x2 is a much skinnier parabola.
How do you know if a parabola has a minimum or maximum value?
When you look at the parabola if it opens downwards then the parabola has a maximum value (because it is the highest point on the graph) if it opens upward then the parabola has a minimum value (because it's the lowest possible point on the graph)
In which direction does the parabola?
A parabola can open left, down, right, or left on a graph, if that's what you mean:\
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