graph the line x = 7.

Explanation:

Step1: Understand the line type

The equation $x = 7$ represents a vertical line. In a two - dimensional Cartesian coordinate system, for a vertical line, the $x$-coordinate is constant for all values of $y$.

Step2: Locate the $x$-value

Locate the point $x = 7$ on the $x$-axis.

Step3: Draw the line

Draw a straight vertical line passing through the point $x = 7$ on the $x$-axis. This line will extend infinitely in both the positive and negative $y$-directions.

Answer:

Draw a vertical line passing through the point $(7,0)$ on the $x$-axis, which extends infinitely in the positive and negative $y$-directions.