Question 260451
my teacher told us to graph y=[x]- 3 
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I'm assuming that [] means "absolute value".
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If so you should plot 3 or more points:
If x = = -1, y = -2
If x = 0,y = -3
If x = 1, y = -2
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Plot the points:(-1,-2),(0,-2),(1,-2)
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Join those points in a v-shape:
{{{graph(400,300,-10,10,-10,10,abs(x)-3)}}}
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Cheers,
Stan H.