The equation of the line is given in the slope-intercept form, which is \( y = mx + b \), where \( m \) is the slope and \( b \) is the y-intercept.
In the equation \( y = -2x - 4 \):
- The slope \( m \) is \(-2\),
- The y-intercept \( b \) is \(-4\).
Therefore, the y-intercept is \(-4\).