f(x) =

c = 1 (slider from -5 to 5, step 0.25)
f(x) = x^(2) + c
P = Point(f)
x0: x(P)
y0: f(x0)
gL: -7
f1_{1}(x) = f'(x)
m0: f'(x0)
t0: ((-x0) * m0) + y0
Y: (0 | t0)
Eingabefeld1 = Textfield(f)
g(x) = (-x^(2)) - c
Q = Point(g)
x1: x(Q)
X: (x1 | 0)
tf(x) = (m0 * (x - x0)) + y0
a = 1 (slider from -5 to 5)
b = -4 (slider from -5 to 5)
o: (f'(sqrt(c)) * g'(sqrt(c)))
f1: f'(sqrt(2))
g1: g'(sqrt(2))
y1: y(Q)
tg(x) = (g'(x1) * (x - x1)) + y1