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anonymous
 5 years ago
need help solve the system of equations by graphing then classify the system as consistent or inconsistent, and as dependent or independent
4xy=15
x+5y=12 step by step plz
anonymous
 5 years ago
need help solve the system of equations by graphing then classify the system as consistent or inconsistent, and as dependent or independent 4xy=15 x+5y=12 step by step plz

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0First step, rewrite them as y=mx + b

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Check the consistency by matrices..

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0These are linear equations in two variables If they have a common solution, then they will cross each other at a point and hence will be consistent. We put them in the form ax + by + c = 0 4x  y  15 = 0 and x + 5y + 12 = 0 Now If \[a1/a2 \neq b1/b2\] then they will intersect at one point and will have a unique and consistent solution Here a1/a2 = 4/1 and b1/b2 = 1/5 Since a1/a2 is not equal to b1/b2, therefore it will have a unique solution and they are consistent.
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