\color{grey}{
y(x) =
\begin{cases}
\frac{3}{4} * x^{3} * \frac{7}{8} x & \text{dla x ∈ <-10, 0>} \\
\frac{1}{sin(x) + 3} & \text{dla x ∈ (0, 4>} \\
-2x/3 & \text{dla pozostalych}
\end{cases}}