Wolfram shows this as the graph:
http://www.wolframalpha.com/input/?i=plot+y+%3D+-%7Cx%7C
I have no idea what you mean by "very wide line" and "thinner line range"
Use integer values of x from -3 to graph the equation.
y = -|x|
1. pic with 2 lines forming a v coming down from the top and ending at the origin. Very wide line.
2. pic with that image just upside down
3. pic with 3. but a thinner line range
4. Pretty much 1 with a thinner range
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