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x_i (p,w)=p_i/((p_1 )^2 + (p_2)^2 ) is a given Marshallian fucntion.

1) How to prove that x_i function is homogeneous of degree zero? 2) Is it monotonically increasing in w? Is it monotonically decreasing in p? 3) Does it satisfy Walras's law and why?

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put on hold as off-topic by Kenny LJ, Patricio, denesp, Herr K., Maarten Punt Feb 12 at 12:15

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question does not meet the standards for homework questions as spelled out in the relevant meta posts. For more information, see our policy on homework question and the general FAQ." – Kenny LJ, Patricio, denesp, Herr K., Maarten Punt