a = 0.5 (slider from -5 to 5, step 0.1)
α_1 = 1.7 (slider from -5 to 5, step 0.1)
β_1 = 1 (slider from -5 to 5, step 0.1)
f(x) = (a * (x - α_1)^(2)) + β_1
b: x = α_1
c: y = β_1
α = Intersect(b, xAxis)
β = Intersect(c, yAxis)