Solve using linear combination.

y - x = - 3

y + x = 3

A) (-3,0)

B) (3,0)

C) (0,3)

D) (0,-3)

Determine which relation is a function. A. { (1,2), (2,3), (3,4), (4,5) } B. { (2,2), (3,2), (4,2), (1,2) } C. { (5,7), (5,8), (5,1), (5,3) } D. { (1,2), (5,8), (1,4), (3,8) }

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