Vertex Form:
k
Slider
Move the slider to see how k shifts the parabola up and down.
y
=
x
² +
k
x
y
−6
−4
−2
2
4
6
−4
−2
2
4
6
8
(0, 0)
CURRENT VALUE
k
=
0
VERTEX
(0,
0
)
active
parent
Changing
k
slides the parabola vertically without changing its shape.
Positive
k
shifts up; negative
k
shifts down.
−4
+4
Reset to k = 0