Data yang dimasukkan: 
[6.567, 12624.0]
[7.0, 21807.0]
[7.258, 38391.0]
[7.451, 54517.0]
[7.548, 51952.0]
[7.839, 28228.0]
[8.161, 35764.0]
[8.484, 20813.0]
[8.709, 12408.0]
[9.0, 10534.0]
Aproksimasi nilai: f(9.166667) = -87822.777344
 