1. Home
  2. For business economics
  3. Chapter 3: Functions of two variables
  4. List of functions of two variables
  5. Minimum functions
  6. Exercise 1

Exercise 1

Consider the function f(x,y)=min{x,2y}. Calculate the function value at (x,y)=(10,8).
10.
16.
8.
−6.
Consider the function f(x,y)=min{x,2y}. Calculate the function value at (x,y)=(10,8).
Antwoord 1 correct
Correct
Antwoord 2 optie
8.
Antwoord 2 correct
Fout
Antwoord 3 optie
16.
Antwoord 3 correct
Fout
Antwoord 4 optie
−6.
Antwoord 4 correct
Fout
Antwoord 1 optie
10.
Antwoord 1 feedback
Correct:f(10,8)=min{10,2⋅8}=min{10,16}=10.

Go on.
Antwoord 2 feedback
Wrong: The idea is not to take the minimum of the two input variables.

See Minimum functions and the corresponding Extra explanation.
Antwoord 3 feedback
Wrong: 16 is not the minimum of the two elements between brackets.

See Minimum functions and the corresponding Extra explanation.
Antwoord 4 feedback
Wrong: min{10,2⋅8}≠10−2⋅8.

See Minimum functions and the corresponding Extra explanation.