Mathematics
Grand-Tests
Easy

Question


Some values of x and their corresponding values of f(x) for the linear function fare shown in the table. What is the value of f (-6) ?

  1. 1
  2. 0
  3. - 1 
  4. - 3 

The correct answer is: 1


    Linear function form not stretchy rightwards double arrow y equals m x plus c
    C = - 1 Since [x = 0 means y – intercept]
    fraction numerator negative 2 plus 5 over denominator 3 minus 12 end fraction equals fraction numerator plus 3 over denominator negative 9 end fraction equals negative 1 third equals m
    y equals fraction numerator negative 1 over denominator 3 end fraction x minus 1
    y equals negative 1 third left parenthesis negative 6 right parenthesis minus 1
    = 2 - 1
    y = 1
    Option A

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