Algebra-1

To match the equation with a graph that is a vertical line:

The line is parallel to the y-axis: This indicates that the equation of the line is of the form x=k, where k is a constant. Vertical lines are defined by a constant x value.

The x-intercept is less than 0: This means the line crosses the x-axis at a negative value.

Given these characteristics, the correct equation should be of the form x=k with k being a negative number.

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