\[f(x) = 12x - 5\]
\[f(2) = 12 \cdot 2 - 5 = 24 - 5 = 19;\]
\[f(0) = 12 \cdot 0 - 5 = - 5;\]
\[f(\ - 1) = 12 \cdot ( - 1) - 5 =\]
\[= - 12 - 5 = - 17.\]