FST (functions, stats, and trigonometry)

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what is the equation for the axis of symmetry for the function f(x)=IxI?(absolute value)

  • FST (functions, stats, and trigonometry) -

    the axis of symettry is x=0

  • FST (functions, stats, and trigonometry) -

    what about if it was moved, say (x,y)-> (x+3, y-1)? i understand where the line is visually but i don't know how to write the equation

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