The graph of a piecewise-defined function is shown below.

On the interval (x≤0, x≤1, x<1, x<0) the function is given by the rule (x= - 1, y= - 1, y=1, x=1), and on the interval (x≥0, x>1, x≥1, x>0) the function is given by the rule (y= - 1, x= - 1, y= 1, x= 1).

The graph of a piecewisedefined function is shown below On the interval x0 x1 xlt1 xlt0 the function is given by the rule x 1 y 1 y1 x1 and on the interval x0 x class=