Parabeln (a-b-c-Form)

mit Streckfaktor?

a = 1 (slider from -5 to 5, step 0.05)
b = 0 (slider from -4 to 4, step 0.1)
c = 0 (slider from -4 to 4, step 0.1)
f(x) = a x^(2) + b x + c
S: (-b / 2 / a, f(-b / 2 / a))
O = (0, 0)
p(x) = x^(2)
S1: (-b / 2 / a + 1, f(-b / 2 / a))
S2: (-b / 2 / a + 1, f(-b / 2 / a + 1))
dx = Segment(S, S1)
dy = Segment(S1, S2)
T1: "f(x) = a x² + b x + c

   = " + a + "x² + (" + b + ") x + (" + c + ")"
C: (0, f(0))
d = Segment(O, C)
h(x) = -a x^(2) + c
aX = false