A = (0, 0)
B = (9, 0)
a = -0.07 (slider from -5 to 5, step 0.01)
b = 0.95 (slider from -5 to 5, step 0.01)
c = 0 (slider from -5 to 5, step 0.01)
Intersect(If[0 < x < 7.4, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.4, (a * x^(2)) + (b * x) + c], yAxis)
C = (0, 0)
D = (10, 0)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.6, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
E = (0, 0)
F: (10.56, -0.04)
Intersect(If[0 < x < 7.3, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.3, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
Intersect(If[0 < x < 7.5, (a * x^(2)) + (b * x) + c], yAxis)
f(x) = If[0 < x < 7.7, (a * x^(2)) + (b * x) + c]