If $a=1, b=2$ and $c=4$, what is the value of $2 a+4 b-11 c$ ?

Step 1 ：Substitute the values of a, b, and c into the expression: \(2a + 4b - 11c = 2(1) + 4(2) - 11(4)\)

Step 2 ：Simplify the expression: \(2 + 8 - 44\)

Step 3 ：Calculate the result: \(-34\)

Step 4 ：Final Answer: \(\boxed{-34}\)