SOLUTION: Determine which two equations represent parallel lines. (a) y = –7x + 4 (b) y = 7x + 4 (c) y = x + 4 (d) y = –7x + 9

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Question 105420: Determine which two equations represent parallel lines.
(a) y = –7x + 4
(b) y = 7x + 4
(c) y = x + 4
(d) y = –7x + 9
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
A&D HAVE EQUAL SLOPES (m=-7) IN THE LINE FORMULA OF [Y=mX+b] THEREFORE THEY ARE PARALLEL.