Define a relation S from R to R as follows:
For all (x, y)∈ R × R,
(x, y)∈ S means that x ≥ y.
a. Is (2, 1) ∈ S? Is (2, 2) ∈ S? Is 2 S 3? Is (–1) S (–2)?
b. Draw the graph of S in the Cartesian plane.
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