Question 431000
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Since it is less than OR equal (*[tex \LARGE \leq]) use a SOLID boundary line.  The reason being that "or equal" means that points on the line ARE a part of the solution set.  Without the "or equal", points on the boundary line would NOT be part of the solution set and you must then use a dashed line to graph it.

John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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