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2. Let C = D = {-3, -2, -1, 1, 2, 3} and define a relation S from C to D as follows: For all $(x, y) in (C imes D)$, $(x, y) in S$ means that $frac{1}{x} - frac{1}{y}$ is an integer a. Is 2S2? Explain. b. Is -1S-1? Explain. c. Is $(2, 1) in S$? Explain. d. Is $(2, -2) in S$? Explain. e. Is $(-3, -1) in S$? Explain. f. Write S as a set of ordered pairs. g. Write the domain and co-domain of S. h. Draw an arrow diagram for S.

          2. Let C = D = {-3, -2, -1, 1, 2, 3} and define a relation S from C to D as follows:
For all $(x, y) in (C 	imes D)$,
$(x, y) in S$ means that $frac{1}{x} - frac{1}{y}$ is an integer
a. Is 2S2? Explain.
b. Is -1S-1? Explain.
c. Is $(2, 1) in S$? Explain.
d. Is $(2, -2) in S$? Explain.
e. Is $(-3, -1) in S$? Explain.
f. Write S as a set of ordered pairs.
g. Write the domain and co-domain of S.
h. Draw an arrow diagram for S.

$2. Let C = D = -3, -2, -1, 1, 2, 3 and define a relation S from C to D as follows: For all (x, y) in (C imes D), (x, y) in S means that frac1x - frac1y is an integer a. Is 2S2? Explain. b. Is -1S-1? Explain. c. Is (2, 1) in S? Explain. d. Is (2, -2) in S? Explain. e. Is (-3, -1) in S? Explain. f. Write S as a set of ordered pairs. g. Write the domain and co-domain of S. h. Draw an arrow diagram for S.$

Added by Cynthia S.

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