Question: consider the function f(x)= |x-5|+|x+7| (a) write the function f(x), as a piece-wise defined function , where the pieces are linear function . (that is,

consider the function f(x)= |x-5|+|x+7|

(a) write the function f(x), as a piece-wise defined function, where the pieces are linear function. (that is, write f(x) using cases, but without using absolute values.)

(b) use part (a) to sketch the graph of the function (by hand).

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