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Mathematics 15 Online
OpenStudy (anonymous):

Identify the mapping diagram that represents the relation and determine whether the relation is a function. {(-3, -6), (-1, -6), (5, -6), (8, -6)} A. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/A_zps3e5d50b0.png The relation is not a function. B. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/B_zpsb14bd5e1.png The relation is a function. C. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/C_zps3f2ced83.png The relation is a function. D. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/D_zps4a2e7d33.png The relation is not a function.

OpenStudy (anonymous):

|dw:1348272552189:dw|The relation is indeed functional as each element in the function's domain maps to a single element in the codomain. It is not, however, injective.

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