A = (0, 1013)
B = (2, 784)
C = (4, 607)
D = (6, 470)
E = (8, 364)
F = (10, 282)
a = 700 (slider from 700 to 1300, step 1)
q = 0.5 (slider from 0.5 to 1.2, step 0.01)
f(x) = If[0 ≤ x ≤ 10, (a * q^(x))]