Найдите: ϕ(-3), ϕ(6), ϕ(0), если ϕ(x)=(x-6)/(x+4).

\[\varphi(x) = \frac{x - 6}{x + 4}\ \]

\[\varphi( - 3) = \frac{- 3 - 6}{- 3 + 4} = - 9.\]

\[\varphi(6) = \frac{6 - 6}{6 + 4} = 0.\]

\[\varphi(0) = \frac{0 - 6}{0 + 4} = - \frac{6}{4} = - 1,5.\]