Sketch the function & identify D & R          {3               x>=2 f(x)= {x^2-4x+6   0<x<2          {[|x|]           x<=0D & R means Domain and Range

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By definition of the function the domain is `(-oo,oo)`

The range is `[0,+oo)`



Note between [-1,0], there should be a red line on the x-axis

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