## Discussion Forum

Que. | A relation R is defined on the set of integers as xRy if f(x + y) is even. Which of the following statements is true? |

a. | R is not an equivalence relation |

b. | R is an equivalence relation having 1 equivalence class |

c. | R is an equivalence relation having 2 equivalence classes |

d. | R is an equivalence relation having 3 equivalence classes |

Answer:R is an equivalence relation having 2 equivalence classes |