function y(x: real): real;begin if x < -1 then y := 1 - 2 * x else if x <= 2 then y := 2 + x * x else y := abs(2 * x * x) + 1;end;function z(x, y: real): real;begin z := 2 * x / (48 - y * y) + 15 * sin(x);end;var x: integer;begin for x := -10 to 10 do writeln('x=',x, ' y=', y(x), ' z=', z(x, y(x)));end.