Which function has an inverse that is also a function?
Answer
A
start set open paren negative 4 comma 3 close paren comma open paren negative 2 comma 7 close paren comma open paren negative 1 comma 0 close paren comma open paren 4 comma negative 3 close paren comma open paren 11 comma negative 7 close paren end set
B
start set open paren negative 4 comma 6 close paren comma open paren negative 2 comma 2 close paren comma open paren negative 1 comma 6 close paren comma open paren 4 comma 2 close paren comma open paren 11 comma 2 close paren end set
C
start set open paren negative 4 comma 5 close paren comma open paren negative 2 comma 9 close paren comma open paren negative 1 comma 8 close paren comma open paren 4 comma 8 close paren comma open paren 11 comma 4 close paren end set
D
start set open paren negative 4 comma 4 close paren comma open paren negative 2 comma negative 1 close paren comma open paren negative 1 comma 0 close paren comma open paren 4 comma 1 close paren comma open paren 11 comma 1 close paren end set