Question #cf6c1

1 Answer
Gaya3
Oct 17, 2017

Plot the points by giving values to #x#.

  • Let #x=-4# (To cancel out the #color(red)(4#)
    #=>y=2abs(cancel(-4+color(red)(4)))-1=0-1=-1#
    #->(color(red)(-4,-1))#

  • Let #x=0#
    #=>y=2abs(0+4)-1=8-1=7#
    #->(color(blue)(0,7))#

  • Let #y=0#
    #=>2abs(x+4)-1=0#
    #=>2abs(x+4)=1#
    #=>abs(x+4)=1/2#
    #=>x+4=-1/2# (One possibility)
    #=>x=-1/2-4=-9/2=-4.5#
    #->(color(green)(-4.5,0))#

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