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marissabartoldo:
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NerdyLizard:
Ok, so, the a value of this type of equation changes how wide it opens. If the number is equal to 1 or greater then the parabola will open smaller. It is from 0-1 (1 not included) then it will open wider.
marissabartoldo:
what about the opening downward part
NerdyLizard:
If a is negative it will open downwards.
marissabartoldo:
ok
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