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