My Math Forum College Level Placement Pretest

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 May 4th, 2017, 04:50 PM #1 Newbie   Joined: May 2017 From: US Posts: 3 Thanks: 0 College Level Placement Pretest 20170504_202140[1].jpg Can someone please explain why the answer is b? I would very much appreciate it!
 May 4th, 2017, 05:20 PM #2 Math Team   Joined: Jul 2011 From: Texas Posts: 2,575 Thanks: 1274 parallel lines have the same slope ... $x-5y=8 \implies m = \dfrac{1}{5}$ $2x-10y=8 \implies m = \dfrac{1}{5}$

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