1) Find the functional relationship between y and x, and find the range of independent variables.
Solution: 2*6= 12
Y = 120 \ x (x > 0) Note that the technical transformation does not mean an increase in hourly consumption.
Range of independent variable x (x > 0)
2) It takes more than 24 hours for some new raw materials to enter the factory. What is the control range of X in order to keep the machine running?
Solution: y≥24
∴ 120\x≥24
The solution is x≤5.
So 0 < x ≤ 5
This question is from the evaluation manual, right? I understand everything, believe me ~