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I was given this homework today and without much explanation from the teacher , I can't find anything similar in my book,

1.- [[ x]] = [[y]] find outside domain/range , argue inclusion or exclusion

2.- compare and contrast (1) y=[[2x]] (2) y=2[[x]] (3) y= [[x/2]]

3.- state domain and range, plot

y { ( 1/4)x+1 , x<-1 ; [[ x]]-2 , -1 <= x<=5 ; (-1/2 ) x +1 ,5<x}

could someone help me, I usually understand math without any problem, but now I have little clue.

thanks

1.- [[ x]] = [[y]] find outside domain/range , argue inclusion or exclusion

2.- compare and contrast (1) y=[[2x]] (2) y=2[[x]] (3) y= [[x/2]]

3.- state domain and range, plot

y { ( 1/4)x+1 , x<-1 ; [[ x]]-2 , -1 <= x<=5 ; (-1/2 ) x +1 ,5<x}

could someone help me, I usually understand math without any problem, but now I have little clue.

thanks

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