Algebraic Function for Domain [-6, 5) and Range (-∞, 5] | Graph Included

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Find an algebraic function with a domain of [-6, 5) and a range of (-infinity, 5] Graph Function

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A function that exists between x = -6 inclusive and x = 5 noninclusive that goes from -infinity to 5 inclusive. Just make one up..
 
I picked up this problem from the Schaum's series book titled "College Mathematics" by Ayres/Schmidt. It is a solved problem in the book. But what surprised me was that the solution to this problem was given in one line without any explanation. I could, therefore, not understand how the given one-line solution was reached. The one-line solution in the book says: The equation is ##x \cos{\omega} +y \sin{\omega} - 5 = 0##, ##\omega## being the parameter. From my side, the only thing I could...
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