The pair of lines represented by the questions `2x+y+3=0 and 4x+ky+6=0` will be parallel if value of k is _________.

Explanation

To determine the value of \( k \) for which the lines represented by the equations \( 2x + y + 3 = 0 \) and \( 4x + ky + 6 = 0 \) are parallel, we can follow these steps:

### Step 1: Identify the coefficients
The first equation is:
\[ 2x + y + 3 = 0 \]
From this equation, we can identify:
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