\[y = 28x + 35\]
\[D(y) = R;\ \ E(y) = R.\]
\[y = 0:\]
\[28x + 35 = 0\]
\[28x = - 35\]
\[x = - \frac{35}{28} = - \frac{5}{4}\]
\[x = - 1,25.\]
\[y > 0\ \ при\ x > - 1,25;\]
\[y < 0\ \ при\ x < - 1,25.\]
\[Функция\ возрастает.\]