Opens downward.
down
Upwards: it is cup shaped, not cap shaped.
It does both depending if it is positive or negative
Nose points right, opens to the left.
Since a parabola is an open infinite curve, the area inside it is infinite.
DOWN!
down
Upwards: it is cup shaped, not cap shaped.
Downwards
Down
LEFT
It does both depending if it is positive or negative
If the number in front of the x squared is negative, then the parabola will open upwards. The opposite occurs when the number is positive.
open upward
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.
Nose points right, opens to the left.
positive.