f(x)=ac^{b(x-h)}+k

a = 1.2 (slider from -20 to 20, step 0.1)
b = 1.6 (slider from -20 to 20, step 0.1)
c = 4.8 (slider from 0 to 20, step 0.1)
h = -3 (slider from -20 to 20, step 0.1)
k = 2.4 (slider from -20 to 20, step 0.1)
f(x) = (a * c^((b * (x - h)))) + k
texte1 = LaTeX(f, true, true)
A = (-7.476796884331611, 3.8)
texte3: "asymptote: y = " + (LaTeX[k]) + ""