how can i plot this piceise function?

>> x = 0 : 0.01 : 25;
for k = 1 : length(x)
  if x < 6.7
    y(k) = 1200*x;
  elseif x >= 6.7 && x < 12
    y(k) = 83*x;
  else
    y(k) = -1200*x;
  end
end
plot(x, y);
grid on;

Answer 1

[Torsten]

x = 0 : 0.01 : 25;
for k = 1 : length(x)
  if x(k) < 6.7
    y(k) = 1200*x(k);
  elseif x(k) >= 6.7 && x(k) < 12
    y(k) = 83*x(k);
  else
    y(k) = -1200*x(k);
  end
end
plot(x, y);
grid on;

Best wishes

Torsten.

[Jesper Christensen]

i want the funktion to raise when x 0-->6.7 and stay 83 from x 6.7 --> 12 and then drop when above 12