V=\left\{p(x) - \text{polynóm} ; \; 8p(0)+6p(1)=0  \right\} 

k = 0.5 (slider from -3 to 3, step 0.1)
A: (0, k)
b_{1}: (-8 * k / 6)
B: (1, b_{1})
l1 = SurdText(k)
l2 = SurdText((-7 * k / 3))
text4: "p:y=" + (LaTeX[l2]) + "x+" + (LaTeX[l1]) + ""
a = SurdText(A)
b = SurdText(B)
p_1 = Line(A, B)
c = -2 (slider from -5 to 5, step 0.01)
q(x) = ((c * (-7 * k / 3)) * x) + (c * k)
text5: "q:y=" + (LaTeX[c]) + "×\left( " + (LaTeX[l2]) + "x+" + (LaTeX[l1]) + "  \right) "