a = 1 (slider from -5 to 5, step 0.1)
b = -3 (slider from -5 to 5, step 0.1)
c = 2 (slider from -5 to 5, step 0.1)
p: y = (a * x^(2)) + (b * x) + c
A = Intersect(p, yAxis, 1)
symmetriakse: x = ((-b)) / ((2 * a))
T = Intersect(p, symmetriakse, 1)
R_1 = Intersect(p, xAxis, 2)
R_2 = Intersect(p, xAxis, 1)
tangent = Tangent(A, p)