How to draw the image of y = | x + 1 | + | 2-x | The three intervals of y = | x + 1 | + | 2-x | are 3, 2x-1 and - 2x + 1 respectively. How to draw this kind of image? Another way of saying is that the solution of an interval is - 3, and the absolute value should not be negative, right?
That's when - 1
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