No. A parabola can open up or down.
Vertex
If you can mash the equation for the parabola into the form Y = Ax2 + Bx + C, then the parabola opens up if 'A' is positive, and down if 'A' is negative.
If a is positive, then the parabola opens upwards; if negative, then it opens downwards.
In that case it opens upwards.
when you have y=+/-x2 +whatever, the parabola opens up y=-(x2 +whatever), the parabola opens down x=+/-y2 +whatever, the parabola opens right x=-(y2 +whatever), the parabola opens left so, your answer is up
A parabola opening up has a minimum, while a parabola opening down has a maximum.
No. A parabola can open up or down.
Vertex
If you can mash the equation for the parabola into the form Y = Ax2 + Bx + C, then the parabola opens up if 'A' is positive, and down if 'A' is negative.
If a is positive, then the parabola opens upwards; if negative, then it opens downwards.
The given terms can't be an equation without an equality sign but a negative parabola opens down wards whereas a positive parabola opens up wards.
No, a parabola is the whole curve, not just a part of it.
In that case it opens upwards.
if it opens up then the point is called the minimum if it opens down its called the maximum
focus , directrix
This is called the 'standard form' for the equation of a parabola:y =a (x-h)2+vDepending on whether the constant a is positive or negative, the parabola will open up or down.