Mathematics
Grade10
Easy

Question

Find a function g left parenthesis x right parenthesis that is the reflection of the graph of f left parenthesis x right parenthesis equals cube root of 5 x minus 1 end root across the x minus a x i s

  1. cube root of negative 5 x plus 1 end root
  2. cube root of 5 x plus 1 end root
  3. cube root of negative 5 x minus 1 end root
  4. cube root of 5 x minus 1 end root

The correct answer is: cube root of negative 5 x plus 1 end root


    Here g left parenthesis x right parenthesis equals negative 1 f left parenthesis x right parenthesis equals negative 1 cross times cube root of 5 x minus 1 end root equals cube root of negative 1 left parenthesis 5 x minus 1 right parenthesis end root equals cube root of negative 5 x plus 1 end root
    So, g left parenthesis x right parenthesis equals cube root of negative 5 x plus 1 end root is the reflection of f left parenthesis x right parenthesis across the x minus a x i s.

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