Mathematics
Grade10
Easy

Question

What is the value of f(2) + f(4) + f(11) + f(12) for the function f ?
straight f left parenthesis straight x right parenthesis space equals space open curly brackets table attributes columnspacing 1em end attributes row cell 100 space comma space 0 space less than space straight x space less or equal than space 4 end cell row cell 95 space comma space 4 space less than space straight x space less or equal than space 8 end cell row cell 90 space comma space 8 space less than space straight x space less or equal than space 12 end cell row cell 95 space comma space 12 space less than space straight x space less or equal than space 16 end cell end table close

  1. 30
  2. 280
  3. 290
  4. 380

Hint:

From the given data we should extract the values

The correct answer is: 380


    from the given data we can get the
    f(2) = 100 , f(4) = 100 , f(11) = 90 , f(12) = 90
    100 + 100 + 90 + 90 = 380
    the value of function f=380

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