Step 1 :Substitute \(-2\) for \(x\) in the function \(f(x) = 3 \times 9^x\).
Step 2 :Calculate \(f(-2) = 3 \times 9^{-2}\).
Step 3 :Simplify to \(f(-2) = 3 / 9^2\).
Step 4 :Further simplify to \(f(-2) = 3 / 81\).
Step 5 :Finally, simplify to \(f(-2) = 1 / 27\).
Step 6 :Substitute \(1/2\) for \(x\) in the function \(f(x) = 3 \times 9^x\).
Step 7 :Calculate \(f(1/2) = 3 \times 9^{1/2}\).
Step 8 :Simplify to \(f(1/2) = 3 \times \sqrt{9}\).
Step 9 :Further simplify to \(f(1/2) = 3 \times 3\).
Step 10 :Finally, simplify to \(f(1/2) = 9\).
Step 11 :Substitute \(0\) for \(x\) in the function \(f(x) = 3 \times 9^x\).
Step 12 :Calculate \(f(0) = 3 \times 9^0\).
Step 13 :Simplify to \(f(0) = 3 \times 1\).
Step 14 :Finally, simplify to \(f(0) = 3\).
Step 15 :So, the function values are \(\boxed{f(-2) = 1/27}\), \(\boxed{f(1/2) = 9}\), and \(\boxed{f(0) = 3}\).