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Earn +20 ptsQ: How does the value of a variable affect the direction the parabola opens?
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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)
What way does the parabola open if a is greater than 0?
If a is greater than zero then the parabola opens upward.
If the parabola opens downward the vertex is called the?
The maximum point.
What is a parabola that opens to the right called?
It is a square root mapping. This is not a function since it is a one-to-many mapping.
When will parabola open down?
In classic geometry, it opens down when the directrix is above the focus.In analytical (coordinate) geometry, if the equation of the parabola isy = ax^2 + bx + c, it opens down if a < 0.
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