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Max value of x+y (solving a linear system)? 
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#1
Apr2310, 11:15 AM

P: 253

1. The problem statement, all variables and given/known data
A line passes through (3,4). What is the maximum value of x+y? 2. Relevant equations y = mx + b 3. The attempt at a solution So I set up a system of equations, m3+b =4; b = Y; mX + b = 0. Then I plugged my values for X and Y into m3+b = 4.. The weird thing is though... there is no maximum value of x+y?? It's just a line, x or y could go out further and further to infinity How should I solve this? Thanks 


#2
Apr2310, 11:48 AM

P: 97

As you say, the only solution that makes sense here is "infinity". Are you sure you have the question right?



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