Consider the following choice function defined over X={x, y,z}. C[{x, y}]={x},c[{y, z}]={y, z{,C[{x, z}]={x, z}]={x, y}.is this choice function rational? Explain your answer. suppose we change C[[x, y,z}] to {x, z}. Will your answer change?

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.

168

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i am pretty sure that the answer is 168

yes   because as the functions are graphed they eventually will intersect unless otherwise

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answer: group b.

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