\[y( - 2,5) = 0;\ \ \ \]
\[y( - 2) = 1,5;\ \ \ \]
\[y( - 0,5) = 2,5;\ \ \ \ \]
\[y(0) = 2;\]
\[y(0,5) = 1,5;\ \ \ \]
\[y(2) = - 1;\ \ \ \ \]
\[y(3) = - 1,5.\]