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 10-11-2012, 01:01 PM #1 Junior Member   Join Date: Sep 2012 Posts: 88 How to solve this math problem? In the xy-plane, line L has equation y=1/4(x)+3, and line m has equation y=1/2(x)+b. If the lines intersect at the point with coordinates (t,11/5), what is the value of b? Help will be appreciated. Reply
 10-11-2012, 03:30 PM #2 Junior Member   Join Date: Sep 2012 Posts: 88 Anyone?..... Reply
 10-11-2012, 03:54 PM #3 Member   Join Date: Aug 2012 Posts: 347 I get 19/5, but it's possible there's a careless error in my scribbled calculations. First, substitute into the first equation. 11/5 = 1/4(t) + 3 solve for t = -16/5 Then, substitute into the second equation. 11/4 = 1/2(-16/5) + b solve for b = 19/5 Reply
 10-11-2012, 05:11 PM #4 Junior Member   Join Date: Sep 2012 Posts: 88 Thank you so much! Now I see why you substituted y for 11/5. The answer is 1/2 though. But your approach was right, you just made a little miscalculation. Reply

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