uses crt;
var
x, h, y: real;
begin
clrscr;
h := 0.5;
x := -4;
while x <= 4 do
begin
y := abs(x - 2) + abs(x + 1);
writeln('x=', x:4:1, ' y=', y:4:1);
x := x + h;
end;
readln
end.
uses crt;
var
x, h, y: real;
begin
clrscr;
h := 0.5;
x := -4;
while x <= 4 do
begin
y := abs(x - 2) + abs(x + 1);
writeln('x=', x:4:1, ' y=', y:4:1);
x := x + h;
end;
readln
end.