Graph of y = ax²

[size=100][size=150]Use the applet to answer the questions below.[/size][/size]
[size=150]Does the graph have reflectional symmetry?[br][/size]
[size=150]Does the graph have a highest/lowest point?[br][/size]
[size=150]What is the direction of opening when [i]a[/i] > 0?[br][/size]
[size=150]What is the direction of opening when [i]a[/i] < 0?[br][/size]
[size=150]If [i]a[/i] > 0, what happens to the graph when you increase the value of [i]a[/i]?[br][/size]
[size=150]If [i]a[/i] < 0, what happens to the graph when you decrease the value of [i]a[/i]?[br][/size]
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Information: Graph of y = ax²