What is the equation of the line that is perpendicular to the line y is equal to 6 and passes through the point negative 4 comma negative 3 ?

The line y = 6 is horizontal, so a line perpendicular to it is vertical and has an equation of the form x = a. To pass through the point (−4, −3), the vertical line must have x-coordinate −4 at every point. Therefore, the equation is x = −4, choice D.

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