SOLUTION: what is the y-intercept for line A (0,1/2) (1/2,0) (0,-1) (-1,0)?

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Question 870440: what is the y-intercept for line A (0,1/2) (1/2,0) (0,-1) (-1,0)?
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
where is the equation for line A?