A legend.
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meaning of definition
The title, legend ( or key) and axes labels all contribute.
the table for x values or -1,0,2,4, also show me the graph
Hmm.. Tough one :D Maybe keybord symbols? Idk.
use a line graph. Place a solid dot at 4. Shade the entire region to the left of 4.x is Less than shade Left.* * * * * The above answer is so very wrong - it has missed out the key word "absolute".Use a line graph. Put a solid dot at -4 and another solid dot at +4 and join them. Every point on the line (including the two end points) is the graph.