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August 29, 2015

Homework Help: math

Posted by michele on Saturday, April 2, 2011 at 10:13am.

If A = {a, b, c, d} and B = {-1, 0, 1} which of the following relations is a function from A to B.
a.(i) {(a, 0), (c, 1), (d, -1)}
b.(ii) {(a, -1), (b, -1), (c, 0), (d, 1)}
c.(iii) {(a, 1), (b, 1), (c, 0), (d, O)}
d.(iv) ({a, 1), (b, 0), (c, -1), (o.O), (a, -1)}
answer choice are
a.(i) and (iv)
b.(i) and (iii)
c.(ii) and Oii)
d.(iii) and (iv)
V

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