\[\boxed{\text{134.}\text{\ }\text{ОК\ ГДЗ\ -\ домашка\ на\ 5}}\]
\[\textbf{а)}\ y = \frac{1}{2}x²,\ \ y = \frac{1}{2}x² + 4,\]
\[\ \ y = \frac{1}{2}x² - 3\]
\[\textbf{б)}\ y = - \frac{1}{3}x^{2},\]
\[\ \ y = - \frac{1}{3}x^{2} + 2,\]
\[\ \ y = - \frac{1}{3}x^{2} - 1\]
\[\textbf{в)}\ y = \frac{1}{5}x²,\]
\[\ \ y = \frac{1}{5} \cdot (x - 3)^{2},\]
\[\ \ y = \frac{1}{5} \cdot (x + 3)²\]