Question #cf6c1

1 Answer
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))