NCERT Exercise 1.1 Q14 - Relations and Functions
Question: Let L be the set of all lines in the XY-plane and R = {(L1, L2) : L1 is parallel to L2}. Show R is an equivalence relation. Find the set of all lines related to y = 2x + 4.
Answer: R is an equivalence relation; the class is all lines y = 2x + c, c ∈ R.
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