1) у = 200 - 2,5х
2f(30) = 200 - 2,5*3f(30) = 200 - 7f(30) = 125
f(50) = 200 - 2,5*5f(50) = 200 - 12f(50) = 75
1) у = 200 - 2,5х
2
f(30) = 200 - 2,5*3
f(30) = 200 - 7
f(30) = 125
f(50) = 200 - 2,5*5
f(50) = 200 - 12
f(50) = 75