Standard Form:
a
Slider
Move the slider to see how a controls the parabola's width and direction.
y
=
a
x
²
x
y
−4
−2
2
4
−6
−4
−2
2
4
6
(0, 0)
CURRENT VALUE
a
=
1
OPENS
UPWARD
active
parent
|
a
| > 1: narrower parabola. |
a
| < 1: wider parabola.
Negative
a
opens down.
a
= 0 collapses to a horizontal line.
−2
+2
Reset to a = 1