Tipo:

lista: {"a x + b≤ 0", "a x + b< 0", "a x + b ≥ 0", "a x + b > 0", "a x² + b x + c ≤ 0", "a x² + b x + c< 0", "a x² + b x + c ≥ 0", "a x² + b x + c> 0"}
lista2: {"≤", "<", "≥", ">", "≤", "<", "≥", " >"}
op = SelectedIndex(lista)
a = 1 (slider from -5 to 5, step 0.1)
b = -2 (slider from -5 to 5, step 0.1)
c = -1 (slider from -5 to 5, step 0.1)
f = If(op  <  5, (a * x) + b, (a * x^(2)) + (b * x) + c)
ff = Simplify(f)
signo = Element(lista2, op)
texto1_1: "" + (LaTeX[ff]) + "" + (LaTeX[signo]) + "0"
ine = If(op ≟ 1 ∨ op ≟ 5, f(x) ≤ 0, op ≟ 2 ∨ op ≟ 6, f(x)  <  0, op ≟ 3 ∨ op ≟ 7, f(x) ≥ 0, f(x) > 0)