Graphical inequalities

When you draw inequalities on graphs, what are the different line styles?

Do you use a dashed line to show that those values are included?

having the same proble as you m8

If it is included it is a full solid line (E.g. Equal to or Greater Than), but if it is not included then it is a dashed line (E.g. Greater Than)

salad has given the correct answer.

saladfingers08

If it is included it is a full solid line (E.g. Equal to or Greater Than), but if it is not included then it is a dashed line (E.g. Greater Than)

thanks

They allow the marks either way I would've thought (they do in IGCSE maths edexcel).

how do we get to know the coordinates of the this equation y=3x+1 which we have to plot on the graph ? please help! thanks

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